Does anyone recommend a switching to 4" exhaust? I have read both sides, no it dont make a difference and yes it does. Do anyone recommend a brand? If there is another post that will help please let me know.
Does anyone recommend a switching to 4" exhaust? I have read both sides, no it dont make a difference and yes it does. Do anyone recommend a brand? If there is another post that will help please let me know.
2007 GMC SIERRA CLASSIC
6.6L LBZ 136,000 miles
Diablo Sport Predator Tuner (MPG Tune)
LT245/75R16E
"Just because you are unique, does not mean you are useful."