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    W.3 Turbo Upgrade, M177


    Availability: In stock


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    W.3 Turbo Upgrade, M177

    For C63 / C63S Models

    The Weistec M177 W.3 Turbo Upgrade unlocks the true potential of the 4.0L Biturbo engine.  Power gains are substantial, especially in the top end.

    The factory turbocharges are disassembled and fully inspected.  The compressor cover and center cartridge are then machined to accept our 5-axis CNC machined 65mm impeller wheel.  Externally, no changes are made to maintain a completely stock appearance.  The new impeller wheel supports greater power levels than the factory unit with little to no sacrifice in spool and response.  The turbochargers are then reassembled with new seals and fully balanced for smooth operation and OEM service life.  All the original oil and coolant lines bolt right up making for a simple install.

    For maximum results, the combination of our Weistec Downpipes, and Weistec High Flow Air Filters is recommended.  A Weistec W.3 Turbo Specific ECU Upgrade is recommended.

    *Power gains vary based on model and modifications.

    *Product may not be emissions compliant.  Check local laws prior to installation.

    Key Features:

    • 600 to 700 HP at the wheels(700 to 820 HP at the engine) depending on fuel and supporting modifications

    • 5 Axis CNC Machined

    • High RPM Balanced for perfection operation

    • Substantial power throughout the RPM range

    • Stock Appearance when installed

    • 100% Bolt on installation

    • ECU Calibration included

    • All necessary hardware and gaskets are included

    PDF Fileweistec_m177_m178_turbo_install (4.9 MB)Download

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    Weistec Engineering performance upgrades may be used solely on vehicles used in sanctioned competition which may never be used upon a public road or highway, unless permitted by specific regulatory exemptions. For state specific details please visit the following website.
    It is the responsibility of the installer and/or user of the product to ensure that it is used in compliance with all applicable laws and regulations. If a product was purchased in error, do not install and/or use it. The purchaser must arrange to return the product(s) for a full refund.
    This policy only applies to installers and/or users who are in the United States, customers who reside in other countries should act in accordance with their local laws and regulations.
    All performance modifications and installations are at the customer’s own risk. Weistec Engineering holds no responsibility either implied or otherwise for mechanical, electrical or other failure when using any aftermarket performance products.