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  • Flowmaster American Thunder Axle-Back Exhaust | 2018-2021 Ford Mustang GT w/ Factory Active Performance Valves (817799)
  • Flowmaster American Thunder Axle-Back Exhaust | 2018-2021 Ford Mustang GT w/ Factory Active Performance Valves (817799)
  • Flowmaster American Thunder Axle-Back Exhaust | 2018-2021 Ford Mustang GT w/ Factory Active Performance Valves (817799)
  • Flowmaster American Thunder Axle-Back Exhaust | 2018-2021 Ford Mustang GT w/ Factory Active Performance Valves (817799)

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    Flowmaster

    Flowmaster American Thunder Axle-Back Exhaust | 2018-2021 Ford Mustang GT w/ Factory Active Performance Valves

    PART# FLO 817799
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    Email - sales@maperformance.com

    Phone 1-888-627-3736



    $ 1,233.95   $ 1,372.00
    Instant Savings of 10% ($ 138.05)

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    2018-2021 Ford Mustang GT 5.0L American Thunder Axle-Back Exhaust System by Flowmaster

    The new Flowmaster American Thunder Axle-back exhaust system is for 2018-2021 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option.

    System features include a pair of specially designed Outlaw series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound.

    The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home.

    Features

    • Quad 4.00-inch Polished 304 Stainless Steel Tips
    • Aggressive Race-proven Outlaw Mufflers
    • Uses the Factory Hanger Locations
    • Full Stainless Steel Construction
    • Straight-through Muffler Design

    Benefits

    • Dyno Tuned for Maximum Performance
    • Easy Installation

    Applications

    • 2018-2021 Ford Mustang GT*
    • For Vehicles With Active Performance Exhaust Option

    What's In The Box?

    • 1 - American Thunder Axle-Back Exhaust
    • Installation Hardware & Instructions

    References

    Warranty

    • Lifetime Limited Warranty

    2018-2021 Ford Mustang GT 5.0L American Thunder Axle-Back Exhaust System by Flowmaster

    The new Flowmaster American Thunder Axle-back exhaust system is for 2018-2021 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option.

    System features include a pair of specially designed Outlaw series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound.

    The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home.

    Features

    • Quad 4.00-inch Polished 304 Stainless Steel Tips
    • Aggressive Race-proven Outlaw Mufflers
    • Uses the Factory Hanger Locations
    • Full Stainless Steel Construction
    • Straight-through Muffler Design

    Benefits

    • Dyno Tuned for Maximum Performance
    • Easy Installation

    Applications

    • 2018-2021 Ford Mustang GT*
    • For Vehicles With Active Performance Exhaust Option

    What's In The Box?

    • 1 - American Thunder Axle-Back Exhaust
    • Installation Hardware & Instructions

    References

    Warranty

    • Lifetime Limited Warranty

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    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

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