GMC Performance Exhaust Systems

Reviewed By Brian M (COOS BAY, OR) Reviewed for a 2014 GMC Sierra —6/20/2017 8:59 PM

Nice easy install, wish it would have come with a new clamp to the cat, cause the hardware on the orginal was a little rusty

Reviewed By Devon M (Earleville, MD) Reviewed for a 2008 GMC Sierra —6/17/2017 7:50 AM

Very nice exaust low rumble at idle nice growl at acceleration. Only issue is the clamps suck.other then that extremely happy with exhaust system

Reviewed By Philip B (COLUMBIA, TN) Reviewed for a 2017 GMC Sierra —6/1/2017 5:54 AM

The Magnaflow exits more to the side and the polished 6" tip looks much better than stock. Gets rid of the factory 3" diffuser and unattractive shroud. Lower EGT keeps the PCM from reducing power on long hills pulling 15K load.