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    W.3 Turbo Upgrade, M157


    Availability: In stock


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    W.3 Turbo Upgrade, M157

    M157 W.3 Turbo Upgrade

    Hundreds of vehicles around the world have made the jump to the Weistec M157 W.3 Turbo Upgrade since being released in 2011. OEM appearance and reliably make the W.3 upgrade an easy decision. We have developed proprietary aerodynamics designed to optimize extreme pressure operation of the M157. The results are astonishing gains resulting in as much as 730 wheel horsepower.

    Weistec Turbocharged 2014 E63S Wagon


    Constructed of billet aluminum, our 71mm impeller wheel is 5-axis CNC machined and flows 53+ lbs/min of air. The light weight impeller design and latest machining technology results in very short spool up times and great overall power. Tailored for use exclusively with the factory M157 Garrett gt22 frame makes this a 100% bolt-on installation. No custom oil and water lines to leak, no headaches. Every factory line connects right to the new turbo, using factory gaskets.  Replacing the oil feed lines with new OEM Oil Feed Lines is recommended, especially on higher mileage vehicles.

    For maximum results, the combination of our Weistec Downpipes, and Weistec High Flow Air Filters is recommended.  An M157 ECU Upgrade is required.

    *Power gains vary based on model and modifications.

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

    Key Features:

    • 5 Axis CNC Machined

    • High RPM Balanced for perfection operation

    • 53+ lb/min Compressor Flow (Stock ~28lb/min)

    • 100% Bolt on installtion

    • All hardware and gaskets are included

    • 660 WHP, 680 WTQ (RWD Vehicles), on 91 octane with supporting upgrades

    No files available.


    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.
    Some Weistec Engineering performance upgrades may solely be used on vehicles in sanctioned competition which may never be used upon a public road or highway, unless permitted by specific regulatory exemptions (such as a CARB E.O.). 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.
    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.


    WARNING: Cancer and Reproductive Harm