Flowmaster

Flowmaster 817807 American Thunder Axle-back Exhaust System

Compatible with 2018-2020 Mustang GT 5.0L without Factory Active Performance Exhaust Valves.

Part # 817807 Be the first to write a review
Estimated shipping date: 10/10/2022
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$857.95
Suggested Retail
$954.00
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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The Flowmaster American Thunder® Axle-back exhaust system for the 2018-2020 Ford Mustang GT with the 5.0L engine is perfect for the person looking for an aggressive exterior sound level with all of the performance benefits that you would expect from Flowmaster®. This bolt-on 409S stainless steel system features 3.00 in. mandrel-bent tubing and two Super 44® series mufflers for maximum power and exterior sound quality, but with a moderate and pleasant interior tone at cruising speeds. The system is finished off with quad 4.00 in. polished 304 stainless steel tips. This system includes all necessary parts, hardware and instructions for an easy installation. NOTE: This kit will not fit vehicles with the Active Performance Exhaust option. Note: Fits Coupes & Convertibles.

Features:

  • Quad 4.00-inch Polished 304 Stainless Steel Tips
  • Dyno-Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • 409S Stainless Steel Construction
  • Moderate/Aggressive Sound
  • Lifetime Limited Warranty
  • Flowmaster Quality
  • Easy Installation
Brand Flowmaster
Emission Code5
Product TypeAxle-Back Exhaust
UPC700042037629
Manufacturer Part Number817807
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817807
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Fits 2018-2020 Mustang GT 5.0L Coupes & Convertibles without Factory Active Performance Exhaust Valves.
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    Some parts are not legal for use in California or other states with similar regulations.