|
Re: Improving '99 Tahoe Fuel Efficiency
Cat-back exhaust can help some as well. I had a '97 K1500 P/U with 350 changed the pos factory muffler and did 3" from the cat back with a flow master 50 muffler and gained about 2-3 mpg.
__________________
NO 4 N JUNK 
1994 GMC K1500 XC 5.7L
2008 Chevy Impala LTZ
|