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    Stage 1 to Stage 2 Supercharger Upgrade, M156


      • This product is not available within the USA

    Availability: In stock


    Stage 1 to Stage 2 Supercharger Upgrade, M156

    The M156 Stage 1 to Stage 2 Upgrade is for those looking to upgrade their exhaust and get more power out of their M156 Stage 1 Supercharger equipped vehicle.  Once an exhaust system featuring long tube headers has been installed on the vehicle, the M156 Stage 1 to 2 Upgrade will be necessary.  The upgrade includes recalibration of the ecu to Stage 2 and a new supercharger pulley to increase boost and take advantage of the long tube headers.

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

    Key Features:

    • 57mm Supercharger Pulley Upgrade

    • Pulley Install Hardware Included

    • Supercharger Serpentine Drive Belt

    • Weistec Engineering Stage 2 Supercharger System ECU Reflash

    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