{"title":"Downpipe Exhaust for Stage Builder","description":null,"products":[{"product_id":"3-downpipe-exhaust-for-2011-2015-lml-6-6l-duramax-diesel","title":"3'' Downpipe Exhaust For 2011-2016 LML 6.6L Duramax Diesel | SPELAB","description":"\u003cp\u003e---tab Description---\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat does a downpipe do?\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either uses a high-flowing catalytic converter or remove the catalytic converter altogether.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy removing the factory downpipe and replacing it with a high flowing unit you are allowing the turbo to more efficiently move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: GM Duramax 6.6L LML Turbo-Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 3 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface\u003c\/strong\u003e: Mirror Polish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Catless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Bolt-on (4-Bolt) with O2 sensor bung\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.32 kg (2320 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLarger internal diameter than stock for dramatically increased exhaust flow\u003c\/li\u003e\n\u003cli\u003eTIG-welded stainless steel construction with mirror polish\u003c\/li\u003e\n\u003cli\u003eReduces turbo lag and enhances throttle response\u003c\/li\u003e\n\u003cli\u003eO2 sensor bung included for sensor retention\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on to the factory turbocharger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003csection aria-label=\"Product summary\"\u003e\n\u003cp\u003eThis \u003cstrong\u003eCatless GM Duramax 6.6L LML Diesel (V8 Turbo-Diesel) downpipe\u003c\/strong\u003e replaces the restrictive factory downpipes and removes the catalytic converter for maximum flow. Engineered for Chevrolet \/ GMC, it’s a direct bolt-on upgrade that delivers lower EGTs, sharper turbo response, and increased flow.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownpipe\u003c\/li\u003e\n\u003cli\u003eGasket(s)\u003c\/li\u003e\n\u003cli\u003eO2 sensor bung\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003e2011-2016 Chevrolet Silverado \/ GMC Sierra 2500\/3500HD owners with the 6.6L LML Duramax turbo-diesel who tow or drive hard and want to lower EGTs, sharpen turbo response, and prepare for a delete tune.\u003c\/p\u003e\n\u003ch2\u003eCheck Before Choosing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab \u0026amp; Chassis exclusion\u003c\/strong\u003e: Will NOT fit Cab \u0026amp; Chassis trucks — only fits pickup models (2500\/3500HD).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune required for delete\u003c\/strong\u003e: Yes — a diesel tune (EFI Live \/ HP Tuners) is required to clear the CEL\/DPF codes and safely manage the increased flow on the LML.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet legality\u003c\/strong\u003e: No — not CARB or EPA certified. Off-road \/ competition use only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT effect\u003c\/strong\u003e: Lowers exhaust gas temperatures under sustained load — a key benefit for towing and hard driving.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible vehicles:\u003c\/strong\u003e Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Chevrolet Silverado 3500HD, and GMC Sierra 3500HD (2011–2016). \u003cstrong\u003eWill NOT fit Cab \u0026amp; Chassis trucks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup (note: 2015.5–2016 needs upgraded SKU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LML Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor 2015.5-2016 6.6 Duramax, we offer 304 stainsteel 3'' downpipe exhaust, you can \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/www.spelabautoparts.com\/products\/3-downpipe-exhaust-for-2015-5-2016-lml-6-6l-duramax-diesel-304-stainless-spelab\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.spelabautoparts.com\/products\/3-downpipe-exhaust-for-2015-5-2016-lml-6-6l-duramax-diesel-304-stainless-spelab\" title=\"Upgraded 3'' Downpipe Exhaust for 2015.5-2016 LML 6.6L Duramax Diesel 304 Stainless | SPELAB\"\u003eCLICK HERE\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e to view more details.\u003c\/p\u003e\n\u003cp\u003e---tab Installation Guide \u0026amp; FAQ---\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003ch3\u003ePre-Installation Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your engine code and model year match the fitment list above\u003c\/li\u003e\n\u003cli\u003eNew gaskets and mounting hardware ready\u003c\/li\u003e\n\u003cli\u003e22mm slotted O2 sensor socket + PB Blaster on hand\u003c\/li\u003e\n\u003cli\u003ea diesel tune (EFI Live \/ HP Tuners) to clear CEL and DPF codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands\u003c\/li\u003e\n\u003cli\u003eSoak the O2 sensors and flange bolts with PB Blaster for 30+ minutes\u003c\/li\u003e\n\u003cli\u003eUnplug and remove the O2 sensors with the slotted socket\u003c\/li\u003e\n\u003cli\u003eRemove the factory downpipe and discard the old gasket\u003c\/li\u003e\n\u003cli\u003eBolt on the new downpipe with a fresh gasket\u003c\/li\u003e\n\u003cli\u003eReinstall and reconnect the O2 sensors\u003c\/li\u003e\n\u003cli\u003eFlash your tune to suppress the check engine light\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNever reuse the old gasket — it will cause an exhaust leak\u003c\/li\u003e\n\u003cli\u003eUse a slotted O2 socket, not a wrench — the sensor threads strip easily\u003c\/li\u003e\n\u003cli\u003eA catless downpipe triggers a CEL until the ECU is tuned\u003c\/li\u003e\n\u003cli\u003eExpect a stronger raw exhaust smell (normal for catless)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDoes it fit Cab \u0026amp; Chassis trucks?\u003c\/h3\u003e\n\u003cp\u003eNo — this SKU is for pickup models only. Cab \u0026amp; Chassis requires a different SKU.\u003c\/p\u003e\n\u003ch3\u003eDo I need a tune on the LML?\u003c\/h3\u003e\n\u003cp\u003eYes — a diesel tune is required to clear the CEL\/DPF codes and safely manage increased flow.\u003c\/p\u003e\n\u003ch3\u003eWill it lower my EGTs?\u003c\/h3\u003e\n\u003cp\u003eYes — reducing back-pressure lowers exhaust gas temperatures under load, which is a key benefit for towing.\u003c\/p\u003e\n\u003ch3\u003eIs it street-legal?\u003c\/h3\u003e\n\u003cp\u003eNo — not CARB or EPA certified. Off-road \/ competition use only.\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"2011-2015 Sliver","offer_id":44793391022331,"sku":"SPES08046","price":118.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Sliver","offer_id":44793391055099,"sku":"SPES08391","price":159.99,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Black","offer_id":44793391087867,"sku":"SPES08391BK","price":159.99,"currency_code":"USD","in_stock":true},{"title":"2011-2015 Sliver+Up pipe-White","offer_id":45180964929787,"sku":"SPES08046-ES08315","price":227.0,"currency_code":"USD","in_stock":true},{"title":"2011-2015 Sliver+Up pipe-Black","offer_id":45180964962555,"sku":"SPES08046-ES08503","price":217.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Sliver-Up pipe-White","offer_id":45180964995323,"sku":"SPES08391-ES08315","price":268.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Sliver-Up pipe-Black","offer_id":45180965028091,"sku":"SPES08391-ES08503","price":258.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016  Black-Up pipe-White","offer_id":45180965060859,"sku":"SPES08391BK-ES08315","price":268.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Black-Up pipe-Black","offer_id":45180965093627,"sku":"SPES08391BK-ES08503","price":258.0,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 EGR Delete Kit+Downpipe Black","offer_id":45796624171259,"sku":"SPES27011-BK-ES08391BK","price":257.76,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 EGR Delete Kit+Downpipe Sliver","offer_id":45796624204027,"sku":"SPES27011-BK-ES08391","price":257.76,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 Downpipe Black+EGR Delete Kit","offer_id":45796624236795,"sku":"SPES27011-SR-ES08391BK","price":257.76,"currency_code":"USD","in_stock":true},{"title":"2015.5-2016 EGR Delete Kit Sliver+Downpipe Sliver","offer_id":45796624269563,"sku":"SPES27011-SR-ES08391","price":257.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/3_DownpipeExhaustFor2011-2016LML6.6LDuramaxDieselSPELAB_4.webp?v=1774887276"},{"product_id":"3-5-downpipe-exhaust-for-2017-2023-l5p-6-6l-duramax-diesel-spelab","title":"3.5'' Downpipe Exhaust For 2017-2025 L5P 6.6L Duramax Diesel | SPELAB","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003cp\u003eThe downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either uses a high-flowing catalytic converter or remove the catalytic converter altogether.\u003c\/p\u003e\n\u003cp\u003eBy removing the factory downpipe and replacing it with a high flowing unit you are allowing the turbo to more efficiently move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli style=\"list-style-type: none;\"\u003e\n\u003cul\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e3.5-Inch Large Diameter Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a larger internal diameter than the stock pipe for dramatically increased exhaust flow, reducing turbo lag and enhancing throttle response.\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003eTurbo Efficiency Optimization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAccelerates exhaust gas exit from the turbine housing, minimizing backpressure to allow the turbo to spin faster and produce more boost and power.\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003eEliminates Factory Restriction:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDirectly replaces the restrictive OEM downpipe, solving the exhaust choking point and providing the essential foundation for further performance mods (e.g., tuning, increasing boost levels).\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003ePrecision Fit and Durability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConstructed from high-quality stainless steel for superior corrosion resistance and long-term reliability under extreme heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: GM Duramax 6.6L L5P Turbo-Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 3.5 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface\u003c\/strong\u003e: Mirror Polish (raw 304 SS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Catless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Bolt-on (4-Bolt) turbo outlet + V-Band clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.10 kg (4100 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownpipe\u003c\/li\u003e\n\u003cli\u003eGasket(s)\u003c\/li\u003e\n\u003cli\u003eV-Band clamp(s)\u003c\/li\u003e\n\u003cli\u003eO2 sensor bung(s)\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCheck Before Choosing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab \u0026amp; Chassis exclusion\u003c\/strong\u003e: Will NOT fit Cab \u0026amp; Chassis trucks — only fits pickup models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune recommended for delete\u003c\/strong\u003e: Yes — a diesel tune is required to clear the CEL\/DPF codes and safely manage the increased flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver vs Black\u003c\/strong\u003e: Silver is the SPELAB \"Best Seller\" — exceptional value and time-tested reliability. Black ceramic is premium look with extra heat management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet legality\u003c\/strong\u003e: No — not CARB or EPA certified. Off-road \/ competition use only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible vehicles:\u003c\/strong\u003e Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Chevrolet Silverado 3500HD, and GMC Sierra 3500HD (2017–2025). \u003cstrong\u003eWill NOT fit Cab \u0026amp;amp; Chassis trucks.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L L5P Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca title=\"3.5'' Downpipe Exhaust For 2017+ L5P 6.6L Duramax Diesel Black| SPELAB-999\" href=\"https:\/\/www.spelabautoparts.com\/products\/3-5-downpipe-exhaust-for-2017-2023-l5p-6-6l-duramax-diesel-black-spelab\"\u003e\u003cspan style=\"color: #00aaff; text-decoration: underline;\"\u003eIf you would like to purchase the black version, please click the link\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e---tab Installation Guide \u0026amp; FAQ---\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003ch3\u003ePre-Installation Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your engine code and model year match the fitment list above\u003c\/li\u003e\n\u003cli\u003eNew gaskets and mounting hardware ready\u003c\/li\u003e\n\u003cli\u003e22mm slotted O2 sensor socket + PB Blaster on hand\u003c\/li\u003e\n\u003cli\u003ea diesel tune to clear CEL and DPF codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands\u003c\/li\u003e\n\u003cli\u003eSoak the O2 sensors and flange bolts with PB Blaster for 30+ minutes\u003c\/li\u003e\n\u003cli\u003eUnplug and remove the O2 sensors with the slotted socket\u003c\/li\u003e\n\u003cli\u003eRemove the factory downpipe and discard the old gasket\u003c\/li\u003e\n\u003cli\u003eBolt on the new downpipe with a fresh gasket\u003c\/li\u003e\n\u003cli\u003eReinstall and reconnect the O2 sensors\u003c\/li\u003e\n\u003cli\u003eFlash your tune to suppress the check engine light\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNever reuse the old gasket — it will cause an exhaust leak\u003c\/li\u003e\n\u003cli\u003eUse a slotted O2 socket, not a wrench — the sensor threads strip easily\u003c\/li\u003e\n\u003cli\u003eA catless downpipe triggers a CEL until the ECU is tuned\u003c\/li\u003e\n\u003cli\u003eExpect a stronger raw exhaust smell (normal for catless)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDoes it fit Cab \u0026amp; Chassis trucks?\u003c\/h3\u003e\n\u003cp\u003eNo — this SKU is for pickup models only.\u003c\/p\u003e\n\u003ch3\u003eSilver or Black?\u003c\/h3\u003e\n\u003cp\u003eBoth fit the same applications — Silver is the time-tested best-value choice; Black is premium with ceramic heat management.\u003c\/p\u003e\n\u003ch3\u003eDo I need a tune on the L5P?\u003c\/h3\u003e\n\u003cp\u003eYes — a diesel tune is required to clear the CEL\/DPF codes and safely manage increased flow.\u003c\/p\u003e\n\u003ch3\u003eIs it street-legal?\u003c\/h3\u003e\n\u003cp\u003eNo — not CARB or EPA certified. Off-road \/ competition use only.\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"Default Title","offer_id":44440172298491,"sku":"SPES08074","price":228.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/00001.webp?v=1755855392"},{"product_id":"4-turbo-downpipe-exhaust-for-2015-2019-ford-6-7l-powerstroke-f250-f350-f450-f550-spelab","title":"4‘’ Turbo Downpipe Exhaust For 2015-2019 Ford 6.7L Powerstroke F250 F350 F450 F550 | SPELAB","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003cp\u003eExperience a significant boost in performance with our 4\" High Flow, 2-Piece Downpipe. Crafted from high-quality 304 Stainless Steel, it not only enhances exhaust flow but also simplifies installation when compared to the stock unit. This downpipe is designed as a factory replacement, ensuring compatibility with any exhaust system and turbocharger that fits the factory location. Elevate your Powerstroke's potential with SPELAB!\u003c\/p\u003e\n\u003ch3\u003eWhat does a downpipe do?\u003c\/h3\u003e\n\u003cp\u003eThe downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either uses a high-flowing catalytic converter or remove the catalytic converter altogether.\u003c\/p\u003e\n\u003cp\u003eBy removing the factory downpipe and replacing it with a high flowing unit you are allowing the turbo to more efficiently move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.\u003c\/p\u003e\n\n\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4\" high-flow design for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003e2-piece construction simplifies installation vs. the stock unit\u003c\/li\u003e\n\u003cli\u003e304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eDesigned as a factory replacement — compatible with any exhaust system or turbo that fits the factory location\u003c\/li\u003e\n\u003cli\u003eO2 sensor bungs included for sensor retention\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003e2015-2019 Ford F-250 \/ F-350 \/ F-450 \/ F-550 Super Duty owners with the 6.7L Powerstroke turbo-diesel who want a 4\" high-flow 2-piece downpipe for maximum flow and easy installation.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: Ford 6.7L Powerstroke Turbo-Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Catless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: V-Band primary + Bolt-on 3-Bolt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.70 kg (5700 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownpipe (2-piece)\u003c\/li\u003e\n\u003cli\u003eGasket(s)\u003c\/li\u003e\n\u003cli\u003eV-Band clamp(s)\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCheck Before Choosing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-piece design\u003c\/strong\u003e: The 2-piece construction simplifies installation by allowing the rear section to be separated from the front section.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune recommended for delete\u003c\/strong\u003e: Yes — a diesel tune is required to clear the CEL\/DPF codes and safely manage increased flow on the 6.7L Powerstroke.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility\u003c\/strong\u003e: Designed as a factory replacement — works with any exhaust system or turbo that fits the factory location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet legality\u003c\/strong\u003e: No — off-road \/ competition use only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible vehicles:\u003c\/strong\u003e Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, and Ford F-550 Super Duty (2015–2019).\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e---tab Installation Guide \u0026amp; FAQ---\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003ch3\u003ePre-Installation Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your engine code and model year match the fitment list above\u003c\/li\u003e\n\u003cli\u003eNew gaskets and mounting hardware ready\u003c\/li\u003e\n\u003cli\u003e22mm slotted O2 sensor socket + PB Blaster on hand\u003c\/li\u003e\n\u003cli\u003ea diesel tune to clear CEL\/DPF codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands\u003c\/li\u003e\n\u003cli\u003eSoak the O2 sensors and flange bolts with PB Blaster for 30+ minutes\u003c\/li\u003e\n\u003cli\u003eUnplug and remove the O2 sensors with the slotted socket\u003c\/li\u003e\n\u003cli\u003eRemove the factory downpipe and discard the old gasket\u003c\/li\u003e\n\u003cli\u003eBolt on the new downpipe with a fresh gasket\u003c\/li\u003e\n\u003cli\u003eReinstall and reconnect the O2 sensors\u003c\/li\u003e\n\u003cli\u003eFlash your tune to suppress the check engine light\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNever reuse the old gasket — it will cause an exhaust leak\u003c\/li\u003e\n\u003cli\u003eUse a slotted O2 socket, not a wrench — the sensor threads strip easily\u003c\/li\u003e\n\u003cli\u003eA catless downpipe triggers a CEL until the ECU is tuned\u003c\/li\u003e\n\u003cli\u003eExpect a stronger raw exhaust smell (normal for catless)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhy 2-piece?\u003c\/h3\u003e\u003cp\u003eThe 2-piece design lets you separate the rear section from the front during installation, making it much easier to fit in the tight engine bay of the Super Duty.\u003c\/p\u003e\u003ch3\u003eDo I need a tune on the 6.7L Powerstroke?\u003c\/h3\u003e\u003cp\u003eA diesel tune is required to clear the CEL\/DPF codes and safely manage the increased flow.\u003c\/p\u003e\u003ch3\u003eIs it street-legal?\u003c\/h3\u003e\u003cp\u003eNo — off-road \/ competition use only.\u003c\/p\u003e\u003ch3\u003eDoes it fit the 2020+ Super Duty?\u003c\/h3\u003e\u003cp\u003eNo — this SKU fits 2015-2019 models. Verify the 2020+ redesign before ordering.\u003c\/p\u003e\n\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"2015-2019 Ford 6.7L Powerstroke","offer_id":44977626644731,"sku":"SPES08675","price":199.0,"currency_code":"USD","in_stock":true},{"title":"2015-2019 6.7 Powerstroke Downpipe+CCV Reroute Black","offer_id":45957432246523,"sku":"SPES08675-KT26010","price":423.99,"currency_code":"USD","in_stock":true},{"title":"2015-2019 6.7 Powerstroke Downpipe+CCV Reroute Red","offer_id":45957432279291,"sku":"SPES08675-KT26010RD","price":423.99,"currency_code":"USD","in_stock":true},{"title":"2015-2016 6.7 Powerstroke Downpipe+EGR Delete Black","offer_id":45957432312059,"sku":"SPES08675-ES27016-BK","price":348.99,"currency_code":"USD","in_stock":true},{"title":"2016-2019 6.7 Powerstroke Downpipe+EGR Delete Black","offer_id":45957432344827,"sku":"SPES08675-ES27012RH","price":338.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/01-2.jpg?v=1743788762"},{"product_id":"spelab-3-downpipe-exhaust-for-2004-5-2010-lly-lbz-lmm-6-6l-duramax-diesel","title":"SPELAB 3'' Downpipe Exhaust For 2004.5-2010 LLY LBZ LMM 6.6L Duramax Diesel","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003ch3\u003eWhat does a downpipe do?\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe downpipe on your turbocharged vehicle is directing the exhaust gases out of the turbine housing into the exhaust system. An aftermarket downpipe will typically be larger in diameter and either uses a high-flowing catalytic converter or remove the catalytic converter altogether.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBy removing the factory downpipe and replacing it with a high flowing unit you are allowing the turbo to more efficiently move gases away from the turbine which creates more power. Since the factory restrictions are now gone you can increase the boost on the vehicle as the factory downpipe is a choking point for performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3\" mandrel-bent stainless steel construction\u003c\/li\u003e\n\u003cli\u003eLarger internal diameter for dramatically increased exhaust flow\u003c\/li\u003e\n\u003cli\u003eReduces turbo lag and enhances throttle response\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on to factory turbocharger\u003c\/li\u003e\n\u003cli\u003eTIG-welded stainless steel with mirror polish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: GM Duramax 6.6L LLY \/ LBZ \/ LMM Turbo-Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 3 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface\u003c\/strong\u003e: Mirror Polish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Catless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2.74 kg (2740 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003e2004.5-2010 Chevrolet Silverado \/ GMC Sierra 2500\/3500HD owners with the 6.6L LLY \/ LBZ \/ LMM Duramax turbo-diesel who want a 3\" downpipe for lower EGTs and delete tuning.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003eCatless LLY\/LBZ\/LMM Duramax downpipe\u003c\/strong\u003e replaces the restrictive factory downpipes and removes the catalytic converter for maximum flow. Engineered for Chevrolet \/ GMC, it’s a direct bolt-on upgrade that delivers lower EGTs, sharper turbo response, and increased flow.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownpipe\u003c\/li\u003e\n\u003cli\u003eGasket(s)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCheck Before Choosing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCab \u0026amp; Chassis exclusion\u003c\/strong\u003e: Will NOT fit Cab \u0026amp; Chassis trucks — only fits pickup models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTune required for delete\u003c\/strong\u003e: Yes — a diesel tune (EFI Live \/ HP Tuners) is required to clear the CEL\/DPF codes and safely manage the increased flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear range\u003c\/strong\u003e: 2004.5-2010 covers the LLY (2004.5-2005), LBZ (2006-2007), and LMM (2007.5-2010) Duramax variants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreet legality\u003c\/strong\u003e: No — off-road \/ competition use only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible vehicles:\u003c\/strong\u003e Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Chevrolet Silverado 3500HD, and GMC Sierra 3500HD (2004.5–2010). \u003cstrong\u003eWill not fit Cab \u0026amp; Chassis trucks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004.5\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LLY Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LLY Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LBZ Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LBZ \/ LMM Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LMM Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LMM Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eChevrolet \/ GMC\u003c\/td\u003e\n\u003ctd\u003eSilverado \/ Sierra 2500HD \/ 3500HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LMM Duramax\u003c\/td\u003e\n\u003ctd\u003ePickup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e---tab Installation Guide \u0026amp; FAQ---\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003ch3\u003ePre-Installation Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your engine code and model year match the fitment list above\u003c\/li\u003e\n\u003cli\u003eNew gaskets and mounting hardware ready\u003c\/li\u003e\n\u003cli\u003e22mm slotted O2 sensor socket + PB Blaster on hand\u003c\/li\u003e\n\u003cli\u003ea diesel tune (EFI Live \/ HP Tuners) to clear CEL\/DPF codes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands\u003c\/li\u003e\n\u003cli\u003eSoak the O2 sensors and flange bolts with PB Blaster for 30+ minutes\u003c\/li\u003e\n\u003cli\u003eUnplug and remove the O2 sensors with the slotted socket\u003c\/li\u003e\n\u003cli\u003eRemove the factory downpipe and discard the old gasket\u003c\/li\u003e\n\u003cli\u003eBolt on the new downpipe with a fresh gasket\u003c\/li\u003e\n\u003cli\u003eReinstall and reconnect the O2 sensors\u003c\/li\u003e\n\u003cli\u003eFlash your tune to suppress the check engine light\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNever reuse the old gasket — it will cause an exhaust leak\u003c\/li\u003e\n\u003cli\u003eUse a slotted O2 socket, not a wrench — the sensor threads strip easily\u003c\/li\u003e\n\u003cli\u003eA catless downpipe triggers a CEL until the ECU is tuned\u003c\/li\u003e\n\u003cli\u003eExpect a stronger raw exhaust smell (normal for catless)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDoes it fit Cab \u0026amp; Chassis trucks?\u003c\/h3\u003e\n\u003cp\u003eNo — this SKU is for pickup models only.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit all LLY \/ LBZ \/ LMM years?\u003c\/h3\u003e\n\u003cp\u003eYes — covers 2004.5-2010 (LLY 2004.5-2005, LBZ 2006-2007, LMM 2007.5-2010).\u003c\/p\u003e\n\u003ch3\u003eDo I need a tune?\u003c\/h3\u003e\n\u003cp\u003eA diesel tune is required to clear the CEL\/DPF codes and safely manage the increased flow.\u003c\/p\u003e\n\u003ch3\u003eIs it street-legal?\u003c\/h3\u003e\n\u003cp\u003eNo — off-road \/ competition use only.\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"White","offer_id":45086167171323,"sku":"SPES08045","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":45086167204091,"sku":"SPES08392","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Black w\/Passenger Up-pipe","offer_id":45086167236859,"sku":"SPES08508","price":209.99,"currency_code":"USD","in_stock":true},{"title":"Black w\/Passenger Up-pipe+06-10 Intercooler Pipe","offer_id":45796563353851,"sku":"SPIS08115-ES08508","price":403.77,"currency_code":"USD","in_stock":true},{"title":"Black w\/Passenger Up-pipe+04.5-10 Intercooler Pipe","offer_id":45949585883387,"sku":"SPIS08117-ES08508","price":365.0,"currency_code":"USD","in_stock":true},{"title":"CCV+ Black w\/Passenger Up-pipe","offer_id":45796563386619,"sku":"SPIS26017-ES08508","price":317.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/01_4145d54b-589b-479d-9bec-c3a6e247d852.jpg?v=1743789778"},{"product_id":"3-turbo-outlet-downpipe-exhaust-for-2001-2004-chevrolet-6-6l-duramax-lb7","title":"3″ Turbo Outlet Downpipe Exhaust for 2001-2004 GMC\/Chevrolet 6.6L Duramax LB7","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 3″ Turbo Outlet Downpipe is a direct-fit upgrade for the 2001–2004 Chevrolet 6.6L LB7 Duramax. Engineered to replace the restrictive OEM pipe, it improves exhaust flow, lowers backpressure, and reduces EGT. Made from 201 stainless steel, its 3″ straight-through design boosts turbo response and efficiency. Installs easily using factory flanges—no welding or tuning needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003e3‑Inch Straight‑Through Design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Provides 20‑25% more flow area than the stock flattened oval pipe, dramatically improving exhaust velocity and reducing turbo lag.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003eLower EGT \u0026amp; Reduced Backpressure\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Helps maintain cooler exhaust temperatures under heavy loads, ideal for towing and high‑demand driving.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003eDirect OE Fitment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Uses factory flange dimensions and bolt holes for a straightforward, no‑weld installation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003eIncluded Heat Shield Wrap\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Minimizes radiant heat transfer to the engine bay, protecting wiring, brake lines, and firewall components.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003eEnhanced Sound \u0026amp; Throttle Response\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Delivers a deeper, more aggressive exhaust tone while improving drivability and turbo spool character.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\n\u003cstrong\u003e\u003cspan\u003eNo Tuning Required\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Works with the stock ECU.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eFor off‑road\/competition use only. Not CARB or EPA certified.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine\u003c\/strong\u003e: GM Duramax 6.6L LB7 Turbo-Diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter\u003c\/strong\u003e: 3 inch (straight-through)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 201 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Straight-through catless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Type\u003c\/strong\u003e: Bolt-on (2-Bolt oval flange)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.30 kg (3300 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003e2001-2004 Chevrolet Silverado \/ GMC Sierra 2500\/3500 owners with the 6.6L LB7 Duramax diesel who want a direct-fit, no-tune-needed downpipe that lowers EGTs and sharpens turbo response.\u003c\/p\u003e\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDownpipe\u003c\/li\u003e\n\u003cli\u003eGasket(s)\u003c\/li\u003e\n\u003cli\u003eHeat shield wrap\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible vehicles:\u003c\/strong\u003e \u003cstrong\u003e2001-2004 6.6L Duramax LB7 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2002\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500\u003c\/td\u003e\n\u003ctd\u003e6.6L LB7 Duramax\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e---tab Installation Guide \u0026amp; FAQ---\u003c\/p\u003e\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003ch3\u003ePre-Installation Checklist\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm your engine code and model year match the fitment list above\u003c\/li\u003e\n\u003cli\u003eNew gaskets and mounting hardware ready\u003c\/li\u003e\n\u003cli\u003e22mm slotted O2 sensor socket + PB Blaster on hand\u003c\/li\u003e\n\u003cli\u003eno tuning required (works with stock ECU)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands\u003c\/li\u003e\n\u003cli\u003eSoak the O2 sensors and flange bolts with PB Blaster for 30+ minutes\u003c\/li\u003e\n\u003cli\u003eUnplug and remove the O2 sensors with the slotted socket\u003c\/li\u003e\n\u003cli\u003eRemove the factory downpipe and discard the old gasket\u003c\/li\u003e\n\u003cli\u003eBolt on the new downpipe with a fresh gasket\u003c\/li\u003e\n\u003cli\u003eReinstall and reconnect the O2 sensors\u003c\/li\u003e\n\u003cli\u003eFlash your tune to suppress the check engine light\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNever reuse the old gasket — it will cause an exhaust leak\u003c\/li\u003e\n\u003cli\u003eUse a slotted O2 socket, not a wrench — the sensor threads strip easily\u003c\/li\u003e\n\u003cli\u003eA catless downpipe triggers a CEL until the ECU is tuned\u003c\/li\u003e\n\u003cli\u003eExpect a stronger raw exhaust smell (normal for catless)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eDo I need a tune on the LB7?\u003c\/h3\u003e\n\u003cp\u003eNo — it works with the stock ECU; no tuning is required for installation.\u003c\/p\u003e\n\u003ch3\u003eWill it lower my EGTs?\u003c\/h3\u003e\n\u003cp\u003eYes — the straight-through design and reduced backpressure lower exhaust gas temperatures under load.\u003c\/p\u003e\n\u003ch3\u003eIs it CARB \/ EPA legal?\u003c\/h3\u003e\n\u003cp\u003eNo — not CARB or EPA certified. Off-road \/ competition use only.\u003c\/p\u003e\n\u003ch3\u003eDoes it include a heat shield?\u003c\/h3\u003e\n\u003cp\u003eYes — included heat shield wrap minimizes radiant heat transfer to the engine bay.\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"Black","offer_id":47780618600699,"sku":"SPJN-EXS22-00041001","price":149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/1_e9a3f4c1-808c-402b-8142-49a79c22d870.webp?v=1780072558"},{"product_id":"4-high-flow-downpipe-exhaust-for-2020-2025-ford-f250-f350-f450-6-7l-powerstroke","title":"4\" High-Flow Downpipe Exhaust for 2020–2025 Ford F250 F350 F450 6.7L Powerstroke","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eFor DP-Back Exhaust Systems with Muffler, an Exhaust Tip Is Included for Free.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUpgrade the exhaust flow of your 2020–2025 Ford 6.7L Powerstroke Diesel with this 4\" high-flow downpipe. Designed as a replacement for the more restrictive factory downpipe, it provides a larger and smoother exhaust path to help reduce exhaust backpressure and improve overall exhaust flow. The improved airflow can help the turbocharger build boost more efficiently, improve throttle response, and reduce exhaust gas temperatures (EGT) during demanding driving conditions such as towing, hauling, climbing, and other high-load applications.\u003c\/p\u003e\n\u003ch3\u003e4\" Downpipe Exhaust for 2020–2025 Ford 6.7L Powerstroke Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" High-Flow Design: \u003c\/strong\u003eThe larger 4\" diameter provides increased exhaust flow compared with the restrictive factory design, helping reduce exhaust resistance and backpressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Turbo Response:\u003c\/strong\u003e A smoother exhaust path allows exhaust gases to exit more efficiently, helping the turbocharger build boost more quickly and improving throttle response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps Reduce EGT: \u003c\/strong\u003eImproved exhaust flow can help manage exhaust gas temperatures under high-load conditions, making it especially suitable for towing, hauling, and extended climbs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Power Potential: \u003c\/strong\u003eBy improving exhaust flow and reducing restriction, the downpipe helps the engine and turbocharger operate more efficiently and provides a better foundation for additional performance upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-Style Routing \u0026amp; Direct-Fit Design: \u003c\/strong\u003eDesigned to follow the factory exhaust path for a straightforward installation without cutting or welding. Compatible with the factory turbocharger and many OE-routing exhaust configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Built to withstand high exhaust temperatures and demanding operating conditions while providing improved corrosion resistance and long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDaily driving and improved throttle response\u003c\/li\u003e\n\u003cli\u003eTowing trailers, RVs, and heavy loads\u003c\/li\u003e\n\u003cli\u003eHauling and high-load applications\u003c\/li\u003e\n\u003cli\u003eMountain driving and extended climbs\u003c\/li\u003e\n\u003cli\u003eOff-road and competition applications\u003c\/li\u003e\n\u003cli\u003ePerformance builds paired with upgraded exhaust systems and tuning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: For off-road, competition, and closed-course use only. Check and comply with all applicable federal, state, and local emissions regulations before installation or use.\u003c\/p\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis product does not fit Cab \u0026amp; Chassis configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 99.9828%; height: 117.5px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003cth style=\"width: 7.32545%; height: 19.5833px;\"\u003eYear\u003c\/th\u003e\n\u003cth style=\"width: 8.64403%; height: 19.5833px;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"width: 59.0431%; height: 19.5833px;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"width: 24.467%; height: 19.5833px;\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 7.32545%; height: 19.5833px;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%; height: 19.5833px;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%; height: 19.5833px;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%; height: 19.5833px;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 7.32545%; height: 19.5833px;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%; height: 19.5833px;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%; height: 19.5833px;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%; height: 19.5833px;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 7.32545%; height: 19.5833px;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%; height: 19.5833px;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%; height: 19.5833px;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%; height: 19.5833px;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 7.32545%; height: 19.5833px;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%; height: 19.5833px;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%; height: 19.5833px;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%; height: 19.5833px;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 7.32545%; height: 19.5833px;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%; height: 19.5833px;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%; height: 19.5833px;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%; height: 19.5833px;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 7.32545%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 8.64403%;\"\u003eFord\u003c\/td\u003e\n\u003ctd style=\"width: 59.0431%;\"\u003eF-250 \/ F-350 \/ F-450 \/ F-550 Super Duty\u003c\/td\u003e\n\u003ctd style=\"width: 24.467%;\"\u003e6.7L Powerstroke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e","brand":"SPELAB","offers":[{"title":"4\"  Downpipe Exhaust \/ No","offer_id":68309852979451,"sku":"SPJN-EXS22-00046002","price":299.99,"currency_code":"USD","in_stock":true},{"title":"4\"  Downpipe Exhaust \/ Yes 4'' DPF Race","offer_id":68313390809339,"sku":"SPES08694S4.0-JN-EXS22-00046002","price":578.99,"currency_code":"USD","in_stock":true},{"title":"4\"  Downpipe Exhaust \/ Yes 4'' DPF Race w\/Muffler","offer_id":68313390842107,"sku":"SPJN-EXS22-00000018-JN-EXS22-00046002","price":599.99,"currency_code":"USD","in_stock":false},{"title":"4\"  Downpipe Exhaust \/ Yes 4'' Dp-Back","offer_id":68313390874875,"sku":"SPJN-EXS22-00000003-ES08019SP-JN-EXS22-00046002","price":828.99,"currency_code":"USD","in_stock":true},{"title":"4\"  Downpipe Exhaust \/ Yes 4'' Dp-Back w\/Muffler","offer_id":68313390907643,"sku":"SPES08693S4.0-ES08019SP-JN-EXS22-00046002","price":808.99,"currency_code":"USD","in_stock":true},{"title":"4\"  Downpipe Exhaust \/ Yes 5'' Dp-Back","offer_id":68313390940411,"sku":"SPJN-EXS22-00000002-ES08023SP-JN-EXS22-00046002","price":1028.99,"currency_code":"USD","in_stock":true},{"title":"4\"  Downpipe Exhaust \/ Yes 5'' Dp-Back w\/Muffler","offer_id":68313390973179,"sku":"SPES08692S5.0-ES08023SP-JN-EXS22-00046002","price":1018.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/01_ea66ac0a-e51b-4f0c-a161-cc6548cff441.webp?v=1791888782"}],"url":"https:\/\/www.spelabautoparts.com\/collections\/downpipe-exhaust-for-stage-builder.oembed","provider":"SPELAB","version":"1.0","type":"link"}