Roush
ROUSH 2015-2017 Ford Mustang ACTIVE Exhaust Upgrade Kit (Requires ACTIVE-READY Exhuast Kit)
SKU: R00I 421926
Description
Part #: 421926
Convert your ROUSH Quad Tip exhaust to a full Active exhaust and take control of your Exhaust note. Our Active Exhaust upgrade kit makes any 2015-2023 Active Ready quad-tip exhaust system into an active exhaust that allows you to tune your exhaust note using our iOS application for virtually infinite sound possibilities. The system utilizes an easily installed valve system that adjusts the flow of the exhaust, thereby adjusting tone and volume. Plug and play Installation requires no cutting or welding. Included in the kit is a 4 mode selector knob with faceplate so you easily switch to pre-set and custom modes on the fly.Converts the following ROUSH Active Ready Quad Tip Exhaust Systems to Full Active Exhaust Systems: 5.0L V8 Active Ready Exhaust Part #421921 2.3L I4 Active Ready Exhaust Part #421923
Shop Roush Performance 2015-2023 Mustang ROUSH Active Exhaust Upgrade Kit. Dominating performance. Aggressive style. Shop now!
Fitment
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Available on iOS & Android
Specifications
| Brand | Roush |
| Part Number | R00I 421926 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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