Upgrading to a larger downpipe can reduce EGTs, Increase Flow, and Improve Throttle Response, Improving the overall Performance and Driving Experience.
Choose your truck and we'll only show you part categories for your selection on this browser.
Can't find your vehicle? Check out our new sister site for even more parts!
Upgrading to a larger downpipe can reduce EGTs, Increase Flow, and Improve Throttle Response, Improving the overall Performance and Driving Experience.
PPE
2002-2024 Duramax Downpipe (117000424)
Industrial Injection
2003-2004 Cummins HX40 Style Downpipe (HX40DP3)
Wehrli Custom Fabrication
2011-2016 Duramax 3" Downpipe (WCF100121)
Wehrli Custom Fabrication
2015.5-2016 Duramax 3" Stainless Downpipe (3-Bolt Flange) (WCF100705)
Wehrli Custom Fabrication
2004.5-2016 Duramax S300 3" Down Pipe (WCF100122)
Wehrli Custom Fabrication
2004.5-2007 Cummins 4" High Mount S300 Downpipe (WCF100281)
Polar Diesel
2020-2026 Powerstroke 6.7L 304SS Polished Downpipe (PD-1-13236000-P)
BD Diesel
1994-2002 Cummins Down Pipe Kit (1045223)
Mopar
Mopar
Mopar
Wehrli Custom Fabrication
2017-2025 Duramax Twin Turbo 4" Down Pipe (WCF100286)
Wehrli Custom Fabrication
2001-2004 Duramax S400 3" Down Pipe (WCF100878)
Wehrli Custom Fabrication
2004.5-2016 Duramax S400 3" Down Pipe (WCF100811)
Wehrli Custom Fabrication
2011-2016 Duramax Twin Turbo 4" Down Pipe (WCF100280)
Wehrli Custom Fabrication
2001-2010 Duramax Twin Turbo 4" Down Pipe (WCF100274)