Upgrading to a larger downpipe can reduce EGTs, Increase Flow, and Improve Throttle Response, Improving the overall Performance and Driving Experience.
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Upgrading to a larger downpipe can reduce EGTs, Increase Flow, and Improve Throttle Response, Improving the overall Performance and Driving Experience.
Wehrli Custom Fabrication
2001-2004 Duramax S300 3" Down Pipe (WCF100123)
Smeding Diesel LLC
1994-2012 Cummins HX40 Downpipe with Clamp (HXDPWC)
Polar Diesel
2011-2016 Duramax 6.6L Downpipe (PD-1-32328000)