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 Joseph N (CLINTON, ME) Reviewed for a 2011 GMC Sierra —9/16/2016 9:17 PM
I've had this installed for a couple weeks now, and as soon as I drove my truck afterwards I noticed a difference. Better throttle response, more power, my truck has really opened up now. As far as gas mileage I'm not sure, since I installed this with the Spectre Throttle Body Spacer as well, though it definitely didn't make it worse. Truck also shifts more smoothly, especially on the highway, gives the truck a nice growl. Installation took me maybe an hour, anyone can do it.
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