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GMC Diesel Exhaust Systems

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Latest Customer Reviews

Flowmaster Exhaust Systems Reviews

Quality Sound, Black Exhaust tips set it off.

Reviewed By Garrett W (HARRISBURG, NC) Reviewed for a 2014 GMC Sierra —11/15/2014 6:11 AM

Alright so everything was a breeze including assembly and installation, and the sound quality is exactly what I wanted. The only concern I have is my 5.3L V8 Sierra has the flex fuel where it kicks down to just 4Cyls. on the Highway or when cruising below a certain RPM. It goes into a deep subtle thudding during the transition from using 8 to 4. I'm pretty sure its just from back pressure, if anyone has an answer for this let me know I'm looking for a solution. Overall fantastic exhaust.

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Gibson Metal Mulisha Exhaust Systems Reviews


Reviewed By kristy b (rome, NY) Reviewed for a 2014 GMC Sierra —11/10/2014 8:11 PM

Took about 20 mins to for installation with one person sounds amazing and looks just as good very happy

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Borla Exhaust Systems Reviews

Not too Loud, Just Right

Reviewed By Tom C (West Milford, NJ) Reviewed for a 2014 GMC Sierra —11/10/2014 2:40 PM

Ordered the Borla exhaust for my 2014 GMC Sierra 1500 because it is the same exhaust the GM offers as a new truck option. So it was a no-brainer for me. Watched Borla's You Tube video to determine the sound levels before I purchased and the install video as well. You definitely need a lift for the changeover. The only issue was the rubber hanger for the drivers side tailpipe, it was too short. So I swapped it with another OEM hanger now the pipes are level.

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