TDG Mafia # 81
Join Date: Jan 2009
Location: Fort Wayne, IN
Thanked 26 Times in 24 Posts
I have a 4in downpipe with 5 in back and it is not too loud for me, but then again I used to ride a Harley and I go by the "Loud Pipes Save Lives" motto. I will put it this way, my 1yo boy sleeps right through any droan while I am going down the road. Hope this helps,
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