Reviewed By Austin C (Shelbyville, IL) Reviewed for a 2001 GMC Sonoma —3/15/2013 8:25 PM
The installation was pretty easy except for step number 10 I believe it was wasn't necessary. Other than that it was simple. It does make a difference in noise when accelerating to 50-60mph and sounds pretty mean. I also checked the mpg over a 100 mile trip all highway and I dropped 2mpg than what i normally get. I don't know if I calculated it wrong or what but hopefully it was a fluke. As for looks for 200 dollars it should look better but it's under the hood who cares its for performance.
Still in review
Reviewed By Craig M (Alpena, MI) Reviewed for a 2000 GMC Sonoma —8/16/2011 5:53 AM
Haven't really noticed that much of a change other than the sound under acceleration. I guess being a V-6 I expect more. I guess over time I might notice some changes but haven't drove my truck enough to notice a big change. I guess a review down the road might be better.
Reviewed By Joshua F (Harker Heights, TX) Reviewed for a 2001 GMC Sonoma —3/26/2008 8:29 AM
i love this thing. i love it so much im going to install one on each of my cars. you can really feal the diff and if you put it on a 4 banger you can hear the diff. love it and it was so easy to use. me and so buddys bet on how long it would take to install i did it in 15 min