2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower
2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower
2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower
2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower
2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower
2001-2024 GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes ppepower

2002-2004 (CA) GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe

$189.99 In Stock Temporarily Out of Stock
45547050402035
PART NUMBER: 117000424 GTIN: 840171210293

Features

  • 304 Stainless steel construction for durability and corrosion resistance
  • Lower EGT, better turbo efficiency and response
  • TIG welded flanges for leak-free, robust connections
  • Smooth transitions and free-flowing design
  • Woven titanium heat sleeve
  • Lower down pipe gasket
  • Compatible with factory or PPE Up-Pipes

FREE SHIPPING FOR ORDERS OVER $100

3 YEAR LIMITED WARRANTY

30-DAY RETURNS

D-701-36

  • Description
  • Compatible Vehicles
  • Downloads

High-Flow 304 Stainless Steel Down Pipe for GM 6.6L Duramax

The factory downpipe is constructed from two pieces of formed sheet metal welded to an oval pipe. The factory design features a sharp, abrupt transition immediately after the turbine flange, which restricts exhaust flow and impedes performance.

Upgrade your LB7 with the PPE Free-Flow Downpipe and eliminate the rusted, restrictive factory design. Crafted from durable 304 stainless steel, this downpipe features a robust half-inch turbine flange, a CNC-machined lower flange, and smooth, optimized transitions for unobstructed exhaust flow. To further enhance performance, it comes with a woven titanium sleeve that effectively insulates heat, protecting the engine bay.

GM Duramax 304 Stainless Steel Down Pipes Three-Inch GM 6.6L Duramax

File
PPE PDF Download file
Install Guide
PPE PDF Download file

Customer Reviews

Based on 1 review
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T
Tony
Quality manufacturing

The cast and machined flanges are of quality I wouldn't want to hide under a clamp. They blend well with the pipe and would appear to have good flow characteristics. Everything fit right up as it should. I did end up needing to add a third hose clamp to the middle of the wrap to keep it from sliding down the pipe.

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