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Roush M90 Supercharger Kit; Black (05-08 GT)

Item 42153
AmericanMuscle no longer carries the Roush M90 Supercharger Kit; Black (05-08 GT). Please check out 2015-2022 Mustang Supercharger Kits & Accessories for an updated selection.
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    Product Information

    Features, Description, Q&A, Specs & Installation


    • Boost Your Engine to 435 HP & 400 Ft-Lb of Torque
    • ROUSH® M90 Roots-Style Supercharger
    • 50 State Legal
    • 3-Year/36,000-Mile Warranty
    • CARB EO Number: D-418-18
    • Fits Automatic and Manual Transmissions


    435 HP, 400 lb-ft of Torque at the flywheel. The new ROUSHcharger M90 Supercharger kit kicks your 2005-2008 4.6L 3V V8 Mustang up to serious new levels of track-shredding power - while maintaining reliability, performance and engine durability across environmental and load conditions.

    Monstrous blower kit, ROUSH style.
    Bring out the beast in your GT with a complete blower kit that includes the ROUSH® M90 Roots-style supercharger, intake manifold, air-to-water intercooler system, 73mm supercharger pulley (generating 5 PSI of boost), and high-flow fuel injectors and induction system.

    Upgraded ROUSH PCM calibration. ROUSH® PCM calibration is a success of engineering that maximizes the power of the system. ROUSHcharger owners will receive a ROUSH® PCM Flash Voucher Card, which is used to obtain the specific calibration needed for your Mustang and requires ROUSH Diagnostic Tool (RDT) software and a J2534 Pass-Through device to upgrade your PCM (software and pass-through device not included). This kit also features the ROUSH® logo, showing that serious performance lies within when you raise your hood.

    CARB Certified. Best of all this Roush Mustang Supercharger Kit is 50-state smog legal under Carb EO# D-418-25.

    Roush Performance quality - guaranteed. Roush is known for a rich tradition of racing performance engineering at the highest level of OEM quality and design - so much so that this Supercharger kit is protected by an industry-leading 3 year / 36,000 mile drivetrain warranty (or one year on Roush components for vehicles already past their warranty date).

    • Fits 2005-2008 4.6L 3V V8 Mustangs with Manual or Automatic Transmissions
    • Brings total power of engine up to 435 hp and 400 ft-lb of torque at the flywheel
    • Black finish
    • Includes ROUSH® PCM Flash Voucher Card
    • Protected by industry-leading 3-year/36,000-mile warranty
    • 50 state legal
    • Features ROUSH® logo

    Please Note: Roush Supercharger Systems are built to order for our customers and accordingly. Because of this there can be a 5 to 7 day lead time on orders once your information is received.

    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • ROUSH® M90 Roots-style supercharger
    • Intake Manifold
    • Air-to-Water Intercooler System
    • 73mm Supercharger Pulley
    • High-flow Fuel Injectors
    • Induction system
    • ROUSH PCM Flash Voucher Card
    • All Gaskets, Wiring and Hardware Necessary
    • Installation Instructions

    Tech Specs

    Questions & Answers

    10 More Questions

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