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GMC Sierra Flowmaster Gas Saving Products

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Latest Customer Reviews

Flowmaster Exhaust Systems Reviews

2007 GMC Sierra Crew Cab 5.3

Reviewed By Randy L (EVANSVILLE, WI) Reviewed for a 2007 GMC Sierra —9/22/2015 5:45 AM

I like Flowmaster exhaust so I bought the American Thunder Series and installed it, I like the idea that you have the option of running it straight out by the bumper or 45 degree angle like stock. It has a real nice deap muscle car tone to it which I really like along with the chrome tips that really look nice that set it off.

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