PPE High-Flow Stainless Steel Down Pipe (2004.5-2010 GM 6.6L Duramax LLY/LBZ/LMM) - (117000500
Overview
Upgrade the restrictive factory downpipe on your LLY, LBZ, or LMM Duramax with the PPE High-Flow 304 Stainless Steel Down Pipe. Designed to improve exhaust flow and turbo efficiency, this direct-fit replacement delivers smoother transitions and a more efficient path for exhaust gases.
Eliminates Factory Bottlenecks
The OEM downpipe makes a sharp directional turn immediately after the turbine flange, creating a major restriction. Additional indentations in the stock pipe further disrupt exhaust flow. PPE's free-flowing design removes these limitations, helping reduce EGTs and improving turbo response.
Premium 304 Stainless Steel Construction
Built from high-quality 304 stainless steel, this downpipe offers excellent corrosion resistance and long-term durability. Cast stainless upper and lower flanges feature CNC-machined mating surfaces for a precise, leak-free fit. The 3-inch mid-section maintains an unrestricted flow path from end to end.
Heat Management & Included Components
A woven titanium heat sleeve is included to help insulate the pipe and protect surrounding components from radiant heat. The kit also includes a lower downpipe gasket for proper sealing during installation.
Key Features
- 304 stainless steel construction for strength and corrosion resistance
- Smooth, free-flowing 3" design reduces restriction
- Helps lower EGTs and improves turbo efficiency
- Cast stainless flanges with CNC-machined mating surfaces
- Includes woven titanium heat sleeve
- Includes lower downpipe gasket
- Compatible with factory or PPE up-pipes
- OEM Reference: GM 98050150
Application
- 2010 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2010 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2010 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2010 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2009 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2009 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2009 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2009 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2008 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2008 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2008 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2008 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2007 GMC Sierra 3500HD Classic 6.6L V8 Turbo Diesel (Duramax)
- 2007 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2007 GMC Sierra 2500HD Classic 6.6L V8 Turbo Diesel (Duramax)
- 2007 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2007 Chevrolet Silverado 3500HD Classic 6.6L V8 Turbo Diesel (Duramax)
- 2007 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2007 Chevrolet Silverado 2500HD Classic 6.6L V8 Turbo Diesel (Duramax)
- 2007 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2006 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2006 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2006 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2006 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
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