Collection: 2015-2023 Mustang Axle-Back Exhaust (S550)

Claimed power gain

CORSA lists 5 HP and 4 lb-ft on the exact 21039 axle-back page, whose manufacturer variant data explicitly includes black-tip SKU 21039BLK. Test/application: 2018-2023 Ford Mustang GT 5.0L V8 Fastback without factory active valves, CORSA Sport axle-back with black tips, variant 21039BLK. Conditions: For non-active-valve vehicles. CORSA does not disclose wheel-versus-crank basis, tune, fuel, dyno protocol, or supporting hardware. Performance results may vary. Manufacturer claim; not independently verified by Anything Coyote.

These are manufacturer power claims gathered from published and online sources. Real-world results vary with your vehicle, its other mods, and driving conditions. Confirm the figure with the manufacturer before you buy. Anything Coyote reports these claims for reference and cannot be held liable for them.

Claimed power gain

CORSA lists 4 HP and 1 lb-ft for exact part 14326. Test/application: 2015-2017 Ford Mustang GT 5.0L V8 Fastback with CORSA Sport axle-back and single 4.5-inch tips, part 14326. Conditions: CORSA does not disclose wheel-versus-crank basis, tune, fuel, dyno protocol, or supporting hardware. The page states that performance results may vary. Manufacturer claim; not independently verified by Anything Coyote.

These are manufacturer power claims gathered from published and online sources. Real-world results vary with your vehicle, its other mods, and driving conditions. Confirm the figure with the manufacturer before you buy. Anything Coyote reports these claims for reference and cannot be held liable for them.