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Exhaust Exhaust Pipes, Systems and Components

Pacific Performance Engineering

Three-Inch 304 Stainless Steel Down Pipe GM 6.6L 2002-2004 (CA) - Includes gasket for lower Down-Pipe flange (117000360)

$189.99 $170.99 Save $19.00

SKU: P00X 117000424

In Stock
In Stock
Ships by Jun 15
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Professional / shop required

Description

The Pacific Performance Engineering 117000424 is a high-flow downpipe designed for GM 6.6L Duramax LB7 engines. It is constructed from durable 304 stainless steel for enhanced corrosion resistance and longevity.

The downpipe features TIG welded flanges for secure, leak-free connections and a woven titanium heat sleeve for effective heat insulation. Its smooth, free-flowing design optimizes exhaust flow, contributing to lower Exhaust Gas Temperatures (EGTs) and improved turbo efficiency and response.

Fitment

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

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Specifications

BrandPacific Performance Engineering
Part NumberP00X 117000424

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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