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    M113K Exhaust System, E55


      • This product is not available within the USA

    Availability: In stock


    M113K Exhaust System, E55

    The biggest restriction to making high power with the M113K engine is the limited flow of the factory exhaust manifolds. Whether you want to make as much power as possible with the AMG Kompressor, or are looking to run the Weistec M113K Supercharger Systems, it will be necessary to upgrade to long tube headers.

    To make for the best power possible, the headers feature 2” primaries that allow for as much flow out of the cylinder head as possible. The large primaries and proper O2 sensor placement of these headers work extremely well when coupled with our Software and Supercharger System, resulting in the best performance and drivability out of all the headers that are currently on the market.

    *Actual system may be different than picture depending on chassis.

    Packaged with the headers are 3” Stainless Steel Midpipes, and a 3” Stainless Steel X Pipe resulting in a bolt on installation that retains the factory resonator and mufflers.

    When paired with Weistec ECU Upgrade and Weistec Modular Crank Pulley, power gains are typically 120+hp at the wheels.

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

    Key Features:

    • All Stainless Construction

    • Tig Welded

    • 2” primaries

    • Midpipes and X Pipe

    • Proper O2 Sensor Placement

    • Exhaust Manifold Gaskets Included

    • Up to 120+whp Gains

    • Bolt In, no Cutting

    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