Flowmaster American Thunder Exhaust System

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Product Details

  • Get a loud, full volume sound with the Flowmaster American Thunder Exhaust System
  • 5-10% power gains, with a boost in MPG
  • Flowmaster Exhausts are built with Mandrel-bent pipes for maximum flow
  • Includes high-flow, low-drone chambered muffler
  • Built from Aluminized Steel for corrosion resistance
  • Flowmaster hardware and instructions included for easy installation
  • Many kits include stainless steel Flowmaster tip (s)
  • 3-Year Warranty

    • There's no sound as uniquely American as that of a rumbling exhaust system. And there's no better way to get that awe-inspiring sound than by bolting on a Flowmaster American Thunder Exhaust System. With its mandrel-bent, free-flowing design and high-quality materials, the Flowmaster American Thunder is ready to sing - and bring the power.

    The Flowmaster American Thunder Exhaust System is not just designed to give you all sound and no punch. With Flowmaster exhausts, you immediately feel 5-10% more horsepower and a few extra miles per gallon thrown in for good measure. The American Thunder boasts mandrel-bent pipes, chambered mufflers, and custom-engineered designs to achieve huge power gains while tuning in an aggressive, classic exhaust tone. Choose from single or dual exits, at rear or side locations for your Flowmaster exhaust.

    Your Flowmaster American Thunder Exhaust System is made entirely with aluminized steel to stand up to rust, and even includes polished Stainless Steel tips for the finished look. Flowmaster, Inc. backs your Flowmaster American Thunder Exhaust System with a 3-Year Warranty.

    California Residents: Prop 65 Warning
    ATTN State of California Consumers Warning: Cancer and Reproductive Harm. www.P65Warnings.ca.gov

    Flowmaster American Thunder Exhaust System Customer Reviews

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    Overall Rating:

    4.7 of 5

    Average Install Time:

    1 - 2 hours
    who drives a GMC Yukon
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    Very nice sound. Not loud.

    Install Time: 1 - 2 hours

    who drives a Ford F150
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    I received my exhaust system on time in good shape. I'm a bit too old for rolling around my driveway in the winter months so I had my trusted mechanic install it. I took them about an hour with a couple of interruptions, but he said it was "easy-peasy" and straightforward. It is a little louder than I expected (my girlfriend says) but is music to MY ears. Very throaty and sweet sounding. Great price and a really nice looking system.

    Install Time: 1 - 2 hours

    who drives a Toyota Tundra
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    Done by myself… was a little frustrating because all parts would not go together easily. But once past the muffler it was cake. Like others have posted the bolts on the chrome tips are crap. Broke them both and had to buy new from local hardware. Other than that sounds amazing!

    Install Time: 1 - 2 hours

    who drives a Chevy Camaro
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    Mufflers sounded great except I have 2012 Camaro convertible and was not told by salesman from auto accessories garage that these did not fit on a convertible after much modification my mechanic was able to somehow make them fit.

    Install Time: 1 - 2 hours

    who drives a Dodge Ram 1500
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    Am very happy with this system, installed quickly, sounds and looks good. Was concerned about drone noise but have none. Put it on my 2012 Ram.

    Install Time: 1 - 2 hours

    who drives a Chevy Silverado
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    Flowmaster American Thunder exhaust system is really nice quality and really nice sound. Auto Accessories Garage did a great job getting it to me. I highly recommend both the product and the company.

    Install Time: 30 - 60 minutes

    who drives a Chevy Silverado
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    I was really impressed in how well the exhaust fit and how well it went together. It sounds great with the headers I have for the truck and I would definitely get another.

    Install Time: Under 30 minutes

    who drives a Ford F150
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    Package arrived on time. Simply to hook up.

    Install Time: 30 - 60 minutes

    who drives a Ford F150
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    The exhaust showed up and was all as advertised. Easily installed and sounds great. Wish I would have purchased sooner.

    Install Time: 30 - 60 minutes

    who drives a Chevy Silverado
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    It was a great product, easy to install, and looks great on my truck.

    Install Time: 1 - 2 hours