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GMC Exhaust, Mufflers & Tips

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Latest Customer Reviews

Flowmaster Super 44 Series Mufflers Reviews

Love Flowmaster!!

Reviewed By Charmaine N (LOGAN, UT) Reviewed for a 2015 GMC Sierra —10/7/2015 10:51 PM

I love my Super 44 series Flowmaster muffler for my '15 GMC Sierra!! Sounds great! Awesome throaty tone! Big savings compared to else where!

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Gibson Exhaust Systems Reviews

Great sounding! Easy to install

Reviewed By Mark B (berwick, ME) Reviewed for a 2013 GMC Sierra —10/5/2015 12:20 PM

Other than the cheap clamps (broke two on install) this is a nice system. Ended up welding it together. Love the sound...not too loud but very deep.

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Gibson Metal Mulisha Exhaust Systems Reviews

Great exhaust

Reviewed By Erik R (SEFFNER, FL) Reviewed for a 2014 GMC Sierra —10/1/2015 4:20 PM

This took roughly an hour for installation and was pretty easy. A big change in both exhaust note and throttle response. The truck roars to life now, but maintains a gentle purr at idle and cruising. Combined with the Airaid CAI this dynamic duo lowered RPMs, increased MPGs (avg +1 MPG so far), and seriously increased driving excitement.

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