Reviewed By Darnell R (Usaf Academy, CO) Reviewed for a 2007 Chevy Avalanche —9/16/2014 8:27 PM
There was a significant increase in gas mileage and noticeable increase in power when driving the mountains of Colorado. I'm not leaving vehicles in the dust, but I can now keep up with them and seem to be faster than the majority. The install was challenging for me; but I'm glad i did it myself. Install time was 2,5 hrs in between watching a football game. If I can install it( anybody can.