Reviewed By Blake W (MORTON, IL) Reviewed for a 1998 GMC C/K 1500 —12/10/2013 8:06 AM
It is letting my truck breath better, which is helping it sound like a truck. Sounds great and is running better.
Reviewed By Dave S (Browntown, WI) Reviewed for a 2000 GMC C/K 1500 —8/29/2013 11:04 AM
I have a 2000 GMC sierra with a 5.3 and thought I would give this a try. The installation is very well documented and it took about half an hour. It's a very simple concept but I haven't driven it enough to have any real honest results as to its claims of better performance.