Reviewed By Nicholas S (ALIQUIPPA, PA) Reviewed for a 2019 GMC Sierra —7/14/2020 6:28 AM
This part added 12 hp and 7 lbs of torque! It was very noticeable after the installation because it gave the truck a deeper pitch from the engine, allowing the engine to breathe more and become more efficient!
Reviewed By gary g (JACKSON, NJ) Reviewed for a 2013 GMC Sierra —6/14/2013 3:35 PM
Xtra Power without compromising gas mileage. 412 pony's ain't enough. Just be careful when you pass someone doing 30 or 40 mph, you better be up on the wheel. The only other change I made was afe dry air filter... Take your time on install, if i can do it anyone can. Follow directions for the after install. Idle should still be same. Can't say enough about AutoAnything, Best service, Best prices!!!!!!!! GT auto....
