Reviewed By Jennie C (MANSFIELD, TX) Reviewed for a 2011 GMC Sierra —9/18/2013 8:41 PM
Awesome product . Put this product on my 2011 sierra denali and it's amazing. The horsepower and torque make my truck a force to be scared of for any competitor . My gas mileage was not affected and this vehicle now is the funniest thing to drive I've ever owned. I strongly recommend this to anybody who wants a stock drivable vehicle intell u put the throttle to the floor.