Duramax Lifetime Supporter
Join Date: Apr 2012
Location: Glendale, AZ
4 got to mention in my previous post that I would also have Rob delete the DPF in the EFI system that's in my trucks future.
So riddle me this batman. Are the DPF delete race pipes with bungs designed to "fool" the DMV folks? AND if you remove the stuff from inside the cat, reinstall it, install the DPF race delete pipe with bungs, hook up the wires, and get a flow through muffler but keep the stock size pipe wouldn't that be almost as good as getting a 4" or 5" system?