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  1. #1
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    Weistec kicks off Mercedes M256 I6 tuning with catless downpipe and ECU software - 53 AMG modes, W213 E53

    You are going to see M256 tuning pick up as more Mercedes models roll out with the motor. This is the new Mercedes modular engine architecture which is very similar to what BMW, Porsche, and basically all German OEM's are doing to cut cost by sharing engine parts among various displacements.

    Click here to enlarge

    The W213 E53 AMG sedan and the C238 E53 AMG coupe variant both have this motor. Output is 429 horsepower stock and Weistec can raise this by 43 horsepower and 90 lb-ft of torque.

    Add in the catless downpipe and output goes up by 58 horsepower and 105 lb-ft of torque.

    Click here to enlarge

    Click here to enlarge

    No dynographs yet.

    ECU tune product page: https://www.weistec.com/m256-ecu-tune.html

    M256 downpipe product page: https://www.weistec.com/m256-downpipe.html

    There are quite a few M256 powered models so expect much of this to carry over and for more products to come:

    EAR MAKE MODEL TRIM ENGINE
    2020 MERCEDES-BENZ GLE53 AMG 4MATIC (V167) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ CLS53 AMG 4MATIC (C257) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ CLS53 AMG 4MATIC (C257) TURBOCHARGED 3L I6 (M256)
    2018 MERCEDES-BENZ CLS53 AMG 4MATIC (C257) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ E53 AMG 4MATIC (W213) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ E53 AMG 4MATIC (W213) TURBOCHARGED 3L I6 (M256)
    2018 MERCEDES-BENZ E53 AMG 4MATIC (W213) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ AMG GT53 4 DOOR 4MATIC (X290) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ AMG GT53 4 DOOR 4MATIC (X290) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ AMG GT43 4 DOOR 4MATIC (X290) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ AMG GT43 4 DOOR 4MATIC (X290) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ AMG GT43 4 DOOR BASE (X290) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ AMG GT43 4 DOOR BASE (X290) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ GLE450 BASE (V167) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ GLE450 BASE (V167) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ CLS450 BASE (C257) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ CLS450 BASE (C257) TURBOCHARGED 3L I6 (M256)
    2018 MERCEDES-BENZ CLS450 BASE (C257) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ S500 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ S500 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2018 MERCEDES-BENZ S500 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2017 MERCEDES-BENZ S500 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2020 MERCEDES-BENZ S450 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2019 MERCEDES-BENZ S450 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2018 MERCEDES-BENZ S450 BASE (W222) TURBOCHARGED 3L I6 (M256)
    2017 MERCEDES-BENZ S450 BASE (W222) TURBOCHARGED 3L I6 (M256)
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

  2. #2
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    The turbo outlet faces the front of the car!? Why?!?!?! Just why?

  3. #3
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    Click here to enlarge Originally Posted by Stevenh Click here to enlarge
    The turbo outlet faces the front of the car!? Why?!?!?! Just why?
    I don't know enough about this motor to talk about it but it's weird for sure.
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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