Reviewed By Sawyer D (SULPHUR ROCK, AR) Reviewed for a 2015 GMC Sierra —1/6/2015 11:55 AM
Saw good review for this product so i gave it shot. I immediately notice better throttle response along with a little better sound. had more of a throaty tone, very nice! as far as power or fuel economy, noticed a little more power and not much for fuel economy. Worth the money for me!