117000600 | PPE Performance High-Flow 304 Stainless Steel Down Pipe (2011-2015 Silverado, Sierra 2500 HD, 3500 HD 6.6L td)
2011-2015 Silverado, Sierra 2500 HD, 3500 HD 6.6L td
Description
2011-2015 GM 6.6L Duramax High-Flow 304 Stainless Steel Down Pipe
PART NUMBER: 117000600
GTIN: 840171210323
OEM P/N REFERENCE: GM 12643610
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
- Compatible with factory or PPE Up-Pipes
- Retains factory sensor/injection ports (2x M20-1.5 and 1x M14-1.5)
High-Flow 304 Stainless Steel Down Pipe
The factory LML down pipe makes an abrupt directional change immediately after the turbine flange, which restricts exhaust flow and impedes performance. The indentations in the piping can further impede exhaust flow.
Upgrade your Duramax with the PPE Free-Flow Downpipe and eliminate the rusted, restrictive factory design. The PPE Down Pipe highlights unrestricted 3-inch diameter flow path all-along, fully machined and TIG welded upper and lower flanges, and three-inch 304 stainless steel piping. It ensures smooth transitions for unobstructed exhaust flow. To further enhance performance, it comes with a woven titanium sleeve that effectively insulates heat, protecting the engine bay.

Note: Only compatible with 2011-2015 LML trucks that uses a clamp at the connection to the exhaust pipe.
Application List
2012 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
2013 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
2014 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
2015 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
2011 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
2012 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
2013 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
2014 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
2015 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
2014 GMC Savana 2500 6.6L V8 Turbo Diesel (Duramax)
2011 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
2012 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
2013 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
2014 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
2015 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
2011 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
2012 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
2013 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
2014 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
2015 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
Details
- 117000600
- 117000600
- 840171210323
- Pacific Performance Engineering
- New
Categories
Shipping Information
- Item Requires Shipping
- 6.5 lbs.
- W5.5000” x H7.0000” x L24.0000”
- Free Ground Shipping | Exclusions Apply*