Roush 421837 Axle Back Exhausts - Roush 2015-2024 Ford Mustang 3.7L/2.3L V6/I4 Exhaust Kit w/ Round Tips for a 2015-2017 Ford Mustang V6, 2015-2023 Ford Mustang EcoBoost, 2022-2022 Ford Mustang Shelby GT500, 2022-2023 Ford Mustang EcoBoost Premium, 2022-2023 Ford Mustang GT, 2022-2023 Ford Mustang GT Premium and 2022-2023 Ford Mustang Mach 1.
Manufacturer: Roush
Product: Roush Axle Back Exhausts
Part Number: 421837
UPC: 844764005020
MSRP: $774.99
$746.61
Coupon Code:OGSavings
Free Shipping (Continental US)
New with manufacturer warranty
Availability:
IN STOCK
WAREHOUSE (East: 2 | Midwest: 2)
Generally ships within 1 business day.
WAREHOUSE (East: 2 | Midwest: 2)
Generally ships within 1 business day.
Have a question regarding this product? Contact us.
Fitment:
NOTES: Roush 2015-2024 Ford Mustang 3.7L/2.3L V6/I4 Exhaust Kit w/ Round Tips
| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2015 - 2017 | Ford | Mustang | V6 | ||
| 2015 - 2023 | Ford | Mustang | EcoBoost | ||
| 2022 - 2022 | Ford | Mustang | Shelby GT500 | ||
| 2022 - 2023 | Ford | Mustang | EcoBoost Premium | ||
| 2022 - 2023 | Ford | Mustang | GT | ||
| 2022 - 2023 | Ford | Mustang | GT Premium | ||
| 2022 - 2023 | Ford | Mustang | Mach 1 |
Description:
Shop Roush Performance 2015-2023 Mustang 3.7L V6 and 2.3L Ecoboost ROUSH Exhaust Kit - Round Tip (304SS). Dominating performance. Aggressive style. View now!. 2015-2018 3.7L/2.3L Mustang, Manual and Automatic Transmission, Coupe and Convertible.
ROUSH's Axle-Back Exhaust for the 2015-2023 I4 2.3L Ecoboost & V6 3.7L Mustangs is a great solution for anyone looking for a much more aggressive tone, and an overall better look!Ford's stock exhaust doesn't quite have the aggressive tone or sound Mustang owners crave; this is where ROUSH Performance comes in! ROUSH Performance has a specially engineered this exhaust that fits both the V6 3.7L and the I4 2.3L 2015-2023 Mustangs. Constructed from T-304 stainless steel, this exhaust is corrosion and stain resistant. Mandrel bends help to maintain high flow and reduce backpressure constantly throughout. This exhaust uses factory mounting points and will fit both V6 and I4 Mustangs without requiring any modification or welding. This exhaust system also greatly improves the sound and performance of your Mustang with single-tip high-flow chambered mufflers.
ROUSH?s Axle-Back Exhaust for the Ecoboost & V6 Mustangs is a great solution for anyone looking for a much more aggressive tone, and an overall better look! Ford?s engine choices offer a variety of high-performing, yet affordable & economic, options to suite any budget or sensibility. This would include the V6 & I4 engines, which perform well beyond what their cylinder count would imply. However, Ford?s stock exhaust doesn?t quite have the aggressive tone or sound Mustang owners crave; this is where ROUSH Performance comes in! Constructed from T-304 stainless steel, this exhaust is corrosion and stain resistant. Mandrel bends help to maintain high flow and reduce backpressure constantly throughout. This exhaust uses factory mounting points and will fit without requiring any modification or welding. This exhaust system also greatly improves the sound and performance of your Mustang with single-tip high-flow chambered mufflers. To finish off the exhaust, ROUSH also includes 2 brand new round dual-wall exhaust tips, which are chrome flashed for superior corrosion resistance and are embossed with the ROUSH logo. Included will also be all necessary hardware to install this system.
ROUSH's Axle-Back Exhaust for the 2015-2023 I4 2.3L Ecoboost & V6 3.7L Mustangs is a great solution for anyone looking for a much more aggressive tone, and an overall better look!Ford's stock exhaust doesn't quite have the aggressive tone or sound Mustang owners crave; this is where ROUSH Performance comes in! ROUSH Performance has a specially engineered this exhaust that fits both the V6 3.7L and the I4 2.3L 2015-2023 Mustangs. Constructed from T-304 stainless steel, this exhaust is corrosion and stain resistant. Mandrel bends help to maintain high flow and reduce backpressure constantly throughout. This exhaust uses factory mounting points and will fit both V6 and I4 Mustangs without requiring any modification or welding. This exhaust system also greatly improves the sound and performance of your Mustang with single-tip high-flow chambered mufflers.
ROUSH?s Axle-Back Exhaust for the Ecoboost & V6 Mustangs is a great solution for anyone looking for a much more aggressive tone, and an overall better look! Ford?s engine choices offer a variety of high-performing, yet affordable & economic, options to suite any budget or sensibility. This would include the V6 & I4 engines, which perform well beyond what their cylinder count would imply. However, Ford?s stock exhaust doesn?t quite have the aggressive tone or sound Mustang owners crave; this is where ROUSH Performance comes in! Constructed from T-304 stainless steel, this exhaust is corrosion and stain resistant. Mandrel bends help to maintain high flow and reduce backpressure constantly throughout. This exhaust uses factory mounting points and will fit without requiring any modification or welding. This exhaust system also greatly improves the sound and performance of your Mustang with single-tip high-flow chambered mufflers. To finish off the exhaust, ROUSH also includes 2 brand new round dual-wall exhaust tips, which are chrome flashed for superior corrosion resistance and are embossed with the ROUSH logo. Included will also be all necessary hardware to install this system.
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SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
2015-2017 Ford Mustang GT Premium
2015-2015 Ford Mustang GT 50 Years Limited Edition
2015-2017 Ford Mustang GT
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IN STOCK (5+)
SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
2015-2017 Ford Mustang GT Premium
2015-2015 Ford Mustang GT 50 Years Limited Edition
2015-2017 Ford Mustang GT
2015-2015 Ford Mustang GT 50 Years Limited Edition
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IN STOCK (5+)
SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
SHIPS FROM MANUFACTURER
(Last checked: 02/15/2026)
Shipping times vary by Manufacturer
(Can take days or weeks, contact us for an ETA)
2015-2017 Ford Mustang GT Premium
2015-2015 Ford Mustang GT 50 Years Limited Edition
2015-2017 Ford Mustang GT
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