{"product_id":"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","description":"\u003cp\u003e---tab Description---\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDirect-fit 3-inch high-flow downpipe for 2015.5-2016 6.6L LML Duramax Diesel. Replaces the restrictive factory pipe to reduce exhaust backpressure, improve turbo response, lower EGTs, and boost overall truck performance for daily driving and heavy towing.\u003c\/p\u003e\n\u003cdiv data-page-id=\"HvITd6sy4oEVxqxhMxlcU3a1ndc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\n\u003ch3 class=\"heading-2 ace-line old-record-id-ZEOUfz6K5dc7Mvcsdq5cnxzpnvd\"\u003eNew Version Upgrades (VS \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/www.spelabautoparts.com\/products\/3-downpipe-exhaust-for-2011-2015-lml-6-6l-duramax-diesel?variant=44793391055099\" style=\"color: rgb(255, 42, 0);\"\u003eOld Version\u003c\/a\u003e\u003c\/span\u003e)\u003c\/h3\u003e\n\u003cdiv data-docx-has-block-data=\"false\" data-lark-html-role=\"root\" data-page-id=\"HvITd6sy4oEVxqxhMxlcU3a1ndc\"\u003e\n\u003cul class=\"list-bullet1\" start=\"1\"\u003e\n\u003cli data-list=\"bullet\" class=\"ace-line ace-line old-record-id-Dl94fl734d0r6ccivtucadycnJf\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePipe \u0026amp; Flange Material Upgrade\u003c\/strong\u003e: Old version adopts 201 stainless steel pipe + iron flange, which is prone to rust, oxidation and deformation under long-term high temperature. New version is fully upgraded to \u003cstrong\u003e304 stainless steel pipe + 304 stainless steel flange\u003c\/strong\u003e, delivering outstanding corrosion resistance, salt spray resistance and high-temperature durability for longer service life and zero exhaust leakage.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli data-list=\"bullet\" class=\"ace-line ace-line old-record-id-A6Dnf0lIod9IFtcesnscPEDznPP\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHeat Wrap Upgrade\u003c\/strong\u003e: Old version comes with natural linen-colored fiberglass wrap, which fades, ages and powders easily. New version upgrades to \u003cstrong\u003eblack fiberglass heat wrap\u003c\/strong\u003e, featuring better heat insulation, anti-aging and anti-peeling performance, effectively isolating engine bay heat with a cleaner racing-style appearance.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium 304 Stainless Steel Pipe: \u003c\/strong\u003eMandrel-bent smooth pipe wall for maximum exhaust flow, rust and corrosion resistant for all-weather use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Heat Insulation: \u003c\/strong\u003eUpgraded basalt heat wrap effectively reduces engine bay temperature and protects peripheral parts from heat damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdy Iron Flange: \u003c\/strong\u003eEquipped with thickened iron flange, high strength, pressure-resistant and leak-proof, ensures tight and stable installation, no exhaust leakage under high temperature.\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Fit: \u003c\/strong\u003ePrecisely engineered for 2015.5-2016 LML Duramax, reserves all factory sensor ports, no cutting or drilling required for easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eColor Option\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSilver (Raw 304 Stainless Steel)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBrushed metallic finish with classic industrial texture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy to clean and maintain, scratch restorable, maximum durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIdeal for users pursuing long-term use and simple maintenance\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBlack (High-Temperature Coated)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSleek matte black racing finish for aggressive modified look\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-temperature resistant coating, no peeling or blistering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCovers minor welding marks for a neater overall appearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePerfect for truck show and modification enthusiasts\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2015.5-2016 Chevrolet Silverado 500 \u0026amp; 3500HD 6.6L Duramax pickup trucks.\u003c\/li\u003e\n\u003cli\u003e2015.5-2016 GMC Sierra 2500 \u0026amp; 3500HD 6.6L Duramax pickup trucks.\u003c\/li\u003e\n\u003cli\u003eWill not fit Cab \u0026amp; Chassis trucks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e\n\u003cdiv class=\"policy-container\"\u003e\n\u003cdiv class=\"policy-item\"\u003e\n\u003ch3\u003eFast Shipping Policy\u003c\/h3\u003e\n\u003cp\u003eYour order will be dispatched within \u003cstrong\u003e1-2 business days\u003c\/strong\u003e, and the package will arrive within your order's estimated date. \u003ca href=\"https:\/\/www.spelabautoparts.com\/pages\/shipping-policy\"\u003eClick for Shipping Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"policy-item\"\u003e\n\u003ch3\u003eEasy Return Policy\u003c\/h3\u003e\n\u003cp\u003eEvery order comes with a \u003cstrong\u003e14-day free return\u003c\/strong\u003e, which means you don't have to pay for a return slip. \u003ca href=\"https:\/\/www.spelabautoparts.com\/pages\/refund-policy\"\u003eClick for Return Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SPELAB","offers":[{"title":"Silver","offer_id":49066397335803,"sku":"SPJN-EXS22-00041004","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":49066397303035,"sku":"SPJN-EXS22-00041003","price":239.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/0609\/9556\/files\/01_c01cf848-5c3d-4814-af71-24830e6cc994.webp?v=1783923225","url":"https:\/\/www.spelabautoparts.com\/products\/3-downpipe-exhaust-for-2015-5-2016-lml-6-6l-duramax-diesel-304-stainless-spelab","provider":"SPELAB","version":"1.0","type":"link"}