Reviewed By Rick D (Danville, VA) Reviewed for a 2008 Chevy Impala —1/18/2017 6:44 PM
Allows the engine and transmission to work together instead of fighting against each other.
Reviewed By Brian M (Nashville, TN) Reviewed for a 2013 Chevy Impala —3/18/2017 11:30 AM
I love it! It makes my impala preform like I expect it to and more. I installed it the same day as a drop in K&N filter and my car sounds awesome. I deffinetly recommend this to anyone. It made my car fun to drive again. Not sure yet on any mpg +/- because I can't keep my foot off the pedal. I was worried about passing an emissions test but it passed no problem. Biy this, you won't regret it!