TDG Mafia # 81
Join Date: Jan 2009
Location: Fort Wayne, IN
Thanked 26 Times in 24 Posts
You could cut out the muffler, but then you have to have a new pipe bent. I have always seen something as cheap as the muffler delete pipes are to be the best way, as they are pre bent and ready to go on with just cutting off the muffler.
IMO, it is better to buy a new turbo down pipe back and eliminate the muffler and cat all at one time. The 4in that I have on my truck really makes the truck sound mean when I get on it, and there is very little restriction.
2001 GMC 2500HD EC/LB, 4X4. A few go fast goodies. 540hp/1107tq Danville Dyno 11/09, Kennedy 40% injectors.
05 IH 9400i with Cummins ISX pulling a lumber bunk trailer, stuck in a swamp somewhere in Indiana.
Proud Veteran Served 6yrs Active Army From Germany, Kuwait and Bosnia to Ft. Hood and Ft. Knox