Flowmaster American Thunder Axle-Back Exhaust System (Bronco 2021+)

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SKU: 818121
Regular price $477.00

Product details

  • SKU 818121

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Looking for the perfect balance between a mild tone while cruising and at idle, but aggressive tone under throttle all while having no drone? The American Thunder axle-back exhaust system is perfect for the daily driven 2021-2023 Ford Bronco with the 2.3 or 2.7-liter engine. This system uses a tuned 60 Series style muffler for an aggressive to moderate exhaust tone and increased performance. Maximum dyno gains of 19 hp and 19 lb-ft. were measured at the rear wheels. 3.00-inch mandrel bent 409 stainless steel tubing is used to maximize exhaust flow and durability. A polished 3.00-inch stainless steel tip is used to add a custom look to this iconic vehicle. All of the necessary hardware is included and factory mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.


  • 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • A 3.00-inch polished stainless steel tips add a custom look
  • No Drone
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • A tuned 60 Series performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Delta Flow Technology Increases Performance
  • Backed by Flowmaster's Lifetime Limited Warranty