gmc 2003

[rusty214]

i have A 2003 gmc with the 6.0 motor in a 2500 hd excab this truck has dual inlet an outlet muffler on it. it now has a 50 series flowmaster but it is so load in the cab is there a better replacement for this truck some told me that a 70 series would be better it has dual 3in pipe from the engine now has 2.50 out but the reverb in the cab is not good thanks

 

[medic/z28]

Try something like a magnaflow or dynamax. Those FMs are design or constructed to be "loud". I have that same muffler you have in the wife's H2 and she loves it.