Need Some Advice.

[hd01chevy]

I have a 01 ccsb 2500hd, it has 3" true dual cat back exhaust, no mufflers. I am considerin running two Flow super 40s, should i run an "x" or "h"pipe before mufflers to equal pressures. Or run just a "x,h" pipe without mufflers. not sure on what to do need advice. like to sound of straights, but gets kinda annoying at 85mph for 6 straight hours so affraid it has to change.

[Silv.4X4]

I have a 2007 2500hd and i had mine straight piped for a while, and like you got pretty annoyed by the sound, so i got an Aero Turbine muffler put on, and then did a 6" turn down right after the back axle, sounds great, i always get poeple asking me what muffler i have, and its not as annoying in the cab. But the muffler is like $140 so its by no means a cheap muffler.

[JoJoJim]

I have a 01 ccsb 2500hd, it has 3" true dual cat back exhaust, no mufflers. I am considerin running two Flow super 40s, should i run an "x" or "h"pipe before mufflers to equal pressures. Or run just a "x,h" pipe without mufflers. not sure on what to do need advice. like to sound of straights, but gets kinda annoying at 85mph for 6 straight hours so affraid it has to change.

I have a 8.1 2001 with Flow Master 40's running separate pipes. The sound is awesome but on long hauls it can be annoying to some passengers.