Reviewed By Robert O (Apple Valley, CA) Reviewed for a 2014 GMC Sierra —6/9/2017 1:07 AM
The only mufflers I buy are these... Mellow at Idle but you when you cut her lose these mags sound amazing, not like those beer can mufflers from Santa Rosa Ca
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.