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Roush Quad Tip Active Axle-Back Exhaust

By: Roush

#421927

    • Requires ROUSH rear valance 421894 (w/o back up sensors) or 421919 (with back up sensors).
    • Fits Mustang GT's with premium chassis packages only (Trim levels - 300A/400A)
    • OE Quality Engineering and construction for long life
    • Dual Tip Mufflers
    • 2015-2017 Mustang 5.0L V8 Convertible only
    • 4" Chrome flashed tips
    • Corrosion resistant 304 stainless steel
    • Full mandrel bending
    • Uses OEM hangars and mounting points
    • No welding required
    • Touring, Sport, Track and Custom settings for 4 exhaust "systems" out of the box
    • Custom programming feature through included WiFi OBD2 interface to Roush Apple iOS application
    • Allows nearly infinite exhaust tone configurations. "MAP" and build your own exhaust note!
    • Brushed Aluminum Console Mounted 4 Mode Selector Switch
    • Easy Plug and Play Installation
    • Includes all necessary wiring, modules, hardware, and instructions
    • Time Required: 2 hours (approximately)

    • Skill Level: Intermediate - You should have "above average" mechanical knowledge/experience to attempt this installation.

    • Mustang 2015-2017 GT

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The ROUSH Active Exhaust system features four modes: TOURING, SPORT, TRACK, and CUSTOM.

TOURING mode with the exhaust valves closed all the way, keeps the exhaust volume to an absolute minimum.

SPORT mode is quiet during normal driving conditions and more aggressive under acceleration. Accelerator position and vehicle speed are used to determine valve position for a more aggressive sound.

TRACK mode keeps the exhaust valves fully open with no restriction to the raw sound of your Mustang. This mode is not legal for street use and is intended for track only.

CUSTOM mode gives you the power to create a custom sound map with our iOS application, personalizing the exhaust tone to fit your lifestyle. The ROUSH active exhaust app gives you full control over valve position based on rpm, vehicle speed and accelerator position.


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