| Just about all of them will be the same. My 5" with a muffler isan't that loud at all. The only time you can hear it is if you are getting after it pretty hard. Even a straight piped duramax isan't that loud inside the cab.
__________________ KYLE  05 Chevy LLY Crew Cab LT Dually 4x4 with lots of go fast goodies!!! Suncoast Tranny, TTS lift pumps, 5" straight pipe, and much more!!! Send me a PM if you want more info on my mods. EFI Live Tuned by IdahoRob!!!! |