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2004 GMC Sierra Performance Exhaust Systems

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Latest Customer Reviews

Flowmaster Exhaust Systems Reviews


Great sound

Reviewed By Shayne R (SWANTON, OH) Reviewed for a 2004 GMC Sierra —1/28/2015 9:11 AM

I love the looks of this on my 04 GMC Sierra. Sounds great as well. Mostly easy to install minus shearing off the studs from the stock mounting point. Although flow masters kit pre planned that as they supplied new bolts for that reason.

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aFe Exhaust Systems Reviews


aFe Exhaust for Duramax

Reviewed By Gregory B (North East, MD) Reviewed for a 2004 GMC Sierra —6/13/2013 11:37 AM

I purchased the aFe exhaust after reading a test article that documented HP and torque gains. Installed the system on GMC 3500 with Duramax. Very impressed with the quality and completeness of the kit. Installation was easy, even after losing the directions and fit is perfect. In fact, it took twice as long to get original system off. Sound quality is good - aggressive, but not annoying or droning. I could not be more pleased with the system, especially at the AutoAnything sale price.

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MBRP Exhaust Systems Reviews


MBRP single catback for 2004 5.3l GMC

Reviewed By William S (Humble, TX) Reviewed for a 2004 GMC Sierra —5/4/2013 8:26 AM

Excellent product, excellent price, deep exhaust sound and you can feel the power in the upper RPM range!!! I am very pleased with their product, it exceeded my expectations!!!

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