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."
Exhaust alone makes minimal difference on the LBZ. Not like the LLY and LB7 anyhow.
My LBZ is completely stock with the exception of my Kennedy Custom ECM.
Kennedy Diesel-owner
More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
2016 GMC K3500SRW D/A CC short LTZ
Custom tuning in house using EFI Live tuning software!
Would it make a difference with a cold air intake?
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."