Roush Axle-Back Exhaust | 2011-2014 Ford Mustang GT (S197) | 5.0L Coyote V8 | Black Tips | 421127-BLK
Roush Axle-Back Exhaust – 2011–2014 Ford Mustang GT (S197) | 5.0L Coyote V8 | Black Tips
Give your 2011–2014 Ford Mustang GT the aggressive exhaust note it deserves with the Roush Axle-Back Exhaust — engineered by Roush Performance, Ford's official performance partner, specifically for the S197 Mustang GT's 5.0L Coyote V8. Roush exhausts are developed alongside Ford engineers to deliver a signature, aggressive exhaust character that complements the Coyote V8's naturally aspirated power delivery — a deep, throaty note under acceleration that remains refined at idle and cruise. The black tip finish adds a purposeful, blacked-out aesthetic to the Mustang's rear end. Axle-back installation means no tune is required — a straightforward bolt-on upgrade that transforms the GT's exhaust note without touching the front of the exhaust system.
Key Features
- Roush Signature Exhaust Note: Engineered by Roush Performance — Ford's official performance partner — to deliver a signature aggressive exhaust character tuned specifically for the 5.0L Coyote V8. Deep and throaty under acceleration, refined at idle and cruise
- Black Tips – Blacked-Out Aesthetic: Black exhaust tips deliver a purposeful, blacked-out appearance at the Mustang's rear end — a clean, aggressive visual upgrade that complements both stock and modified S197 builds
- Axle-Back Design – No Tune Required: Axle-back installation replaces only the exhaust from the rear axle back — no modifications to the catalytic converters or mid-pipe. No tune required for installation
- Direct OEM Fitment: Engineered specifically for the 2011–2014 Ford Mustang GT (S197) — direct bolt-on replacement using OEM mounting points for a clean, factory-integrated installation
- Roush Performance Quality: Manufactured by Roush Performance — Ford's official performance partner with decades of Mustang-specific engineering expertise and motorsport heritage
Specifications
- Type: Axle-Back Exhaust
- Tip Finish: Black
- Tune Required: No
- Engine: 5.0L Coyote V8
- Fitment: 2011–2014 Ford Mustang GT (S197)
- Part Number: 421127-BLK
Note: Verify your specific Mustang GT model year and trim level before ordering — this exhaust fits the 2011–2014 S197 GT with the 5.0L Coyote V8. Not compatible with the V6 or Boss 302 variants without verification. Professional installation recommended for proper fitment and alignment of exhaust tips.