Flowmaster · New

Flowmaster 21-25 Ford Bronco 2.3/2.7L American Thunder Axle-Back Exhaust System

Name: Flowmaster 21-25 Ford Bronco 2.3/2.7L American Thunder Axle-Back Exhaust System
Brand: Flowmaster
SKU: flo818121
Price: 618.95 USD

MPN 818121 · Store SKU flo818121

$618.95

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Supplier stock checked 11/8/2026, 6:01:40 AM UTC. Adding a part does not reserve it.

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Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

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Product details

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 2021-2026 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. Fits 2021-2026 Ford Bronco 2.3L/2.7L, American Thunder Axle-Back, Single Exit Flowmaster American Thunder Axle-Back Exhaust System

Manufacturer fitment & guides

Check 818121 against the manufacturer’s application information below.

Part-specific notes

California Proposition 65: Y

Manufacturer documents

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