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PPE

3.5-Inch 304 Stainless Steel Down Pipe

$219.99 $188.09 Save $31.90

SKU: 117000800

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The PPE down pipe is a 3.5-inch exhaust component designed to improve flow and longevity on 2017-2025 GM 6.6L Duramax L5P engines. Constructed from 304 stainless steel with TIG-welded flanges, it replaces the restrictive, crushed oval-shaped stock pipe with a smooth, round design. It includes a woven titanium heat sleeve to help reduce engine bay temperatures and retains the factory sensor port.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandPPE
Part Number117000800
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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