3.5" Downpipe Exhaust For Chevrolet Silverado & GMC Sierra L5P 6.6L Duramax Diesel 2017-2023

€135,55

SKU: C138-B090~Wal

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Feature:
The 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.

By 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.

Specifics:
Condition:100% Brand New
Material: Stainless Steel
Type: 3.5 Inch Downpipe

Fitment:
For 2017,2018,2019,2020,2021,2022,2023 Chevrolet Silverado & GMC Sierra 2500 & 3500HD 6.6L Duramax pickup trucks.
Will not fit Cab & Chassis trucks

Shipping Information:
Free Quick Shipping.
Estimated Time of Arrival: within 3-6 working days.

Customer Reviews

Based on 438 reviews
50%
(218)
35%
(154)
9%
(39)
3%
(12)
3%
(15)
A
Anthony Wilfong
2013 BMW 535ix F10 - 3.5” Turbo Catless Downpipe

I was a little skeptical at first about going with a smaller brand, but then I reminded myself that at the end of the day, it’s a downpipe. After receiving it, I was honestly impressed with the quality. The catless downpipe looks great, even though once it’s installed you’ll never really see it.

It arrived quickly, was packaged extremely well, and the installation was pretty straightforward. I didn’t run into much trouble during the install. I replaced the upper seal and the V-band clamp while I was in there, but honestly both of the original parts probably would have been perfectly fine to reuse.

One tip: make sure you install the O2 sensors in the same positions as they were on the factory pipe.

Overall, I’m really glad I bought this downpipe and I would absolutely buy it again. I’d highly recommend it to anyone looking to make their F10 catless. I even took a few side-by-side photos next to the factory catalytic converter for comparison.

If you’re on the fence about it, just buy it—you won’t regret it.

I also loaded the MHD Tuning Stage 2+ tune at the same time so I wouldn’t have a check engine light, along with a few other supporting upgrades.

R
Rodolfo Garcia
4 inch pipe

Fits perfectly and is a good quality

M
Mary Stewart

2008-2013 Infiniti G37 3.7L V6 Coupe & Sedan 2.5" Test Pipes Exhaust DownPipe

D
Don Rogers
Order on time, as purchased!

Shipped on time, as ordered, perfect fit!

M
Madison Carpenter

Great fit. Little tight around secondary O2 sensors but I managed to make it work