Reviewed By Jeremy B (WEST SENECA, NY) Reviewed for a 2016 GMC Sierra —9/19/2016 4:48 AM
Noticed the increase in horsepower right away!
Reviewed By Robert O (RICHLANDS, NC) Reviewed for a 2016 GMC Sierra —9/17/2016 5:34 AM
Easy to install, looks great, has noticeably increased throttle response and makes the engine sound great. Gas mileage has increased a little bit I haven't been able to drive a long distance to see what the results will be.
Reviewed By Jess R W (HORSESHOE BEND, AR) Reviewed for a 2001 GMC Sierra —9/7/2016 3:53 AM
Was very easy to install and the directions were great. Fit my truck great also the performance was much better and better gas milelge is much better. As long as I keep my foot out of it.