American Thunder Axle-Back Exhaust System Fits 2021-2025 Ford Bronco 2.3L/2.7L, American Thunder Axle-Back, Single Exit - Flowmaster - 818121

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 2021-2025 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

Delta Flow Technology Increases Performance and Reduces Drone

Delta Flow Technology Increases Performance

Backed by Flowmaster's Lifetime Limited Warranty