2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering
2001-2004 (FED) GM 6.6L Duramax Three-Inch 304 Stainless Steel Down Pipes Pacific Performance Engineering

2001-2004 (FED) GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe

$189.99 In Stock Temporarily Out of Stock
45478383354099
PART NUMBER: 117000400 GTIN: 840171210279

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

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3 YEAR LIMITED WARRANTY

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D-701-30

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High-Flow 304 Stainless Steel Down Pipe

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.

High-Flow 304 Stainless Steel Down Pipe - 01-04 (FED) GM 6.6L Duramax

Customer Reviews

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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.

Installation Guide: 

01-04 Duramax Three-Inch Down Pipe

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