3.5" High Flow Exhaust Up Pipes For Chevy 6.6L L5P Duramax Diesel 2017-2020 Generic


SKU: C138-B098~001

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Upgrade the L5P to achieve higher-flow by bolting on PPE OEM-Length Replacement High-Flow Up-Pipes.
These direct replacements have a 46% larger flow area over stock, which results in a deeper-breathing power-plant, while maintaining the mandated Federal emissions standards of stock.
The Length Up-Pipes are manufactured from stainless steel. These new Up-Pipes include the superior internally-sleeved bellows, also manufactured from stainless steel.
This system is engineered to take the abuse of high temperatures and high pressures, while promoting increased exhaust flow and lower EGTs.

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

For 2017-2021 Chevy Silverado 2500HD/3500HD 6.6L L5P Duramax Diesel
For 2017-2021 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax Diesel

Package including:
As shown in the figure

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

Customer Reviews

Based on 79 reviews
Jason Zoboroski

all fit great but get the muffler

Dominick O’Connor
Sounds awesome

It has a very nice deep tone while on those low RPM’s and a nice controlled loud tone in the high RPMS’s. It was pretty easy to install but the only problem was that it was a little bit short on the bumper so some of the exhaust fumes gets on the muffler. It also made my gas millage better. Btw if you’re gonna be installing this on a g35 coupe like me you will need an 8 inch by 3 inch wide extension pipe.

Fernando Flores


john odell
B58 f22 bmw

Bolted in no issue only concern was that I had to take the tail end of my old downpipe to make a spacer to allow me to tighten down the clamp tight enough on to the port on the downpipe it was too small needs to be flared out more otherwise works perfectly. You do not check engine light. You will need a spacer and tune

Liz Ludlow

Good quality for the money!