PPE High-Flow Stainless Steel Down Pipe (2015.5-2016 GM 6.6L Duramax LML) - (117000700
Overview
Improve exhaust flow and turbo efficiency on your LML Duramax with the PPE High-Flow 304 Stainless Steel Down Pipe. Designed to replace the restrictive factory unit, this upgraded pipe delivers smoother transitions and a more efficient path for exhaust gases.
Eliminates Factory Restrictions
The OEM LML downpipe makes a sharp directional change immediately after the turbine flange, creating a significant bottleneck. Additional indentations in the stock pipe further reduce flow. PPE's free-flowing design removes these restrictions, helping lower EGTs and improving turbo response.
Premium 304 Stainless Steel Construction
Crafted from high-quality 304 stainless steel, this downpipe offers excellent corrosion resistance and long-term durability. It features fully machined upper and lower flanges, TIG-welded for a strong, leak-free connection. The 3-inch diameter piping maintains an unrestricted flow path from end to end.
Heat Management & Sensor Compatibility
A woven titanium heat sleeve is included to help insulate the pipe and protect surrounding components from excess heat. The design also retains factory sensor and injection ports (2x M20-1.5 and 1x M14-1.5) for proper OEM functionality.
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
- TIG-welded, fully machined upper and lower flanges
- Includes woven titanium heat sleeve
- Retains factory sensor ports (2x M20-1.5, 1x M14-1.5)
- Compatible with factory or PPE up-pipes
Note: Only compatible with LML trucks equipped with a three-bolt flange at the exhaust pipe connection.
Application
- 2016 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2016 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2015 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
