Chevy and GMC Duramax Diesel Forum - View Single Post

xrobx24 · 05-17-2008, 03:34 PM

so would you say its worth it to get a 4" exhaust.. assuming i was getting a PPE standard at the same time. and doing a air box mod and adding a ppe boost valve.

05-17-2008, 03:34 PM	eBay Motors #24 (permalink)
xrobx24 Member Join Date: May 2008 Location: selma, ca and sometime turlock, ca Posts: 67	so would you say its worth it to get a 4" exhaust.. assuming i was getting a PPE standard at the same time. and doing a air box mod and adding a ppe boost valve.