Reviewed By Matt K (EARLVILLE, IL) Reviewed for a 1997 Chevy C/K 1500 —7/9/2014 6:38 AM
I bought a di/do super 40 5 yrs ago and it completely rusted out on me. I bought the same thing again except in SS this time to prevent the rust. I now have dual turn downs instead of dual tail pipes and it is slightly louder and definitely deeper sounding. Since I've been running this muffler for 5 yrs I have noticed an increase in hp and mpg went up by 3-4 both on and off the highway. Easy to install as well took two hrs counting taking the old system off and putting the new one on.