28 Products
Downpipe Exhaust
SPELAB Downpipe Exhaust
The high-quality exhaust manifold can improve exhaust air flow rate and ensure you have a better driving experience.
The mission of SPELAB is that bring high-quality automotive accessories to every corner of the world. We aim to provide the best quality auto parts at the best purchasing. Our high-quality products and professional services are looking forward to becoming the preferred choice for your reliable brand.
SPELAB offers you to check out our great selection of Automotive Replacement Exhaust Headers including exhaust header exhaust tips and exhaust clamps.
In the meantime,there are several products to recommend:l5p downpipe,lbz downpipe,lmm downpipe,lml downpipe,lb7 downpipe.
Filter products
- ENGINE
-
POWERSTROKE
- DPF Delete Exhaust
- All In One Kit
- EGR Delete Kit
- CCV PCV Reroute Kit
- DPF Delete Dual Exhaust
- Tuner
- Intercooler Pipe Kit
- Up-Pipe
- Intercooler
- CP4 Bypass Kit
- CCV Recirculating Kit
- Muffler
- Downpipe
- Intake Manifold
- Air Intake Kit
- Radiator
- Oil Catch Can
- Differential Cover
- Coolant Tube
- Valve Cover
- Transmission Pan
- Coolant Expansion Tank
- Exhaust Manifold
- Turbo
-
DURAMAX
- Tuner
- EGR Delete Kit
- CCV Reroute/delete kit
- DPF Delete Exhaust
- DPF Delete Dual Exhaust
- All In One Kit
- Muffler
- Up-Pipe
- Downpipe
- Intake Elbow Bridge Kit
- Intercooler
- Intercooler Pipe Kit
- Air Intake Kit
- Radiator
- Differential Cover
- Valve Cover
- Oil Pan
- Cooler Line Kit
- Fuel Sump Return Kit
- Tonneau Cover
- Coolant Tube
-
DODGE RAM
- Tuner
- EGR Delete Kit
- CCV Reroute/delete kit
- EGT Relocation Kit
- DPF Delete Exhaust
- All In One Kit
- Muffler
- Air Intake Kit
- Intercooler
- Intercooler Pipe Kit
- Radiator
- Valve Cover
- Differential Cover
- Intake Manifold
- Coolant Bypass Kit
- Coolant Leak Repair Kit
- Fuel Rail Plug
- Fuel Tank Sump Kit
- Oil Catch Can
- Oil Pan
- Coolant Tube
- ALL-IN-ONE KITS
- CATEGORIES
- ON SALE
Let customers speak for us
from 5335 reviews
Welds look solid and professional quality, I have not installed them yet but I did put them in place under truck to ensure length and thus far everything looks good. I will give an update after install and on the road with them
Product came in earlier than expected and is made out of high quality materials. SPELAB hasn't let me down yet!!
The product installed perfectly high-quality superior part. For my 2022 f350. Coolant reroute kit.
Everything works great all parts fit hangers fit have pictures if needed
This is a really nice set up inexpensive but well-made. Make sure you use 1/4 inch drive and torque wrench, if you get the half socket 10mm and multi size extensions even better it’ll make getting those two back bolts easy
Makes truck breathe better and will definitely blow your y bridge out so do that while you’re in there looks great and fits up pretty good not perfect
Installed this SPELAB EGR Throttle Valve Delete on my 6.7 Cummins and the fitment was perfect. The kit was well made, installation was straightforward, and all the necessary parts were included. Everything lined up as it should and the truck runs great. Highly recommend for anyone looking for a quality replacement component.
I originally had the Banks Monster Ram intake with grid heater delete, and costed $1200. Recently I decided to give Spelab a try for their 3.5” pusher style intake with grid heater delete. Fraction of the price and performs the same. Only regret I have was my purchase of Banks.
Great product
Good product fast sipping was not that bad of a job
Nicely done ✅
Easy installation and everything fit perfectly. The kit is well-made, comes with the necessary components, and worked as expected. Shipping was fast and the quality exceeded my expectations. Highly recommend for anyone looking for a reliable EGR delete kit.
Very impressed with the quality of the cooler. Couldn’t find any instructions for the install. However, I was able to figure it out and plan to post a video for anyone else who may need help with the install.
Installed this on my 2015 6.7 Powerstroke and everything fit perfectly. Quality parts, straightforward install, and noticeable improvement in engine temps and reliability. Would definitely recommend this kit to anyone doing an EGR delete.
Installed on a 2019 Ram cab and chassis with no issues. Fitment was good, quality looks solid, and throttle response feels better. Definitely recommend this intake horn/grid heater upgrade.
FAQS
Yes, a catless downpipe will likely trigger a CEL on most vehicles. The OBD-II system flags the downstream O2 sensor for abnormal readings after the catalytic converter is removed (P0420 or similar codes). Pair your downpipe with a tuning solution that disables factory catalytic monitoring, or install a catted downpipe to stay emissions-compliant.
A downpipe replaces just the single component between the turbo and the rest of the exhaust. A full DPF delete kit replaces the entire exhaust tract including the Diesel Particulate Filter for unrestricted flow from turbo to tailpipe. Start with a downpipe if you're already tuned; go for an all-in-one kit if you need a complete delete solution.
The 2017-2025 GM L5P 6.6L Duramax requires a 3.5-inch downpipe. SPELAB's L5P downpipe is available in standard or black ceramic-coated finishes at $228. Earlier Duramax models like the LML use a 3" downpipe. Pair the upgrade with a DPF delete tune—the factory calibration will restrict performance gains without matching ECU changes.
DIY is possible for experienced mechanics. Expect 2–4 hours with basic hand tools. Challenges include removing rusted factory bolts (use penetrating oil first), aligning the new downpipe with the turbo outlet gasket, and sealing joints with high-temp exhaust sealant. If working under a lifted truck and fighting rusted hardware isn't for you, budget $150–$300 for professional installation.
Yes. The factory downpipe is one of the first flow restrictions in a diesel exhaust system. A smooth, larger-diameter downpipe reduces turbo backpressure and lets the turbo spool faster. Real-world gains are 15–40 HP depending on platform and tuning level. Combined with a full delete kit and ECU tuning, gains can exceed 100 HP on platforms like the LML 6.6L Duramax.
