• JB4 Performance Tuner for Mercedes-Benz C63, E63, GT, GLC, Including S models

    JB4 Features & Benefits

    • Power gains of up to 100hp and up to 135Nm on a stock vehicle
    • Improves 0-60 times and 1/4 mile times
    • Preloaded with custom JB4 Mercedes tuning software and up to 8 maps for various fuel and modification levels
    • Ethanol (E85) compatible tuning maps
    • Able to read/delete fault codes
    • View and record up to 40 different gauges/engine parameters in real-time with the JB4 app.
    • Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
    • Exhaust flap operation can be controlled in most JB4 applications
    • Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
    • The JB4 offers a lot more performance, functionality, and safety than your average performance chip
    • Quick Plug & Play Installation
    • CANbus OBDII integration offering unrivalled tuning features and performance
    • Improved performance over non-integrated chip tunes
    • Runs as smoothly as stock. This is how your vehicle should have come from the factory
    • Compatible with all driving modes
    • Fuel economy unchanged during normal driving
    • 91 octane fuel or better required for performance gains
    • Not VIN locked and can be removed without a trace and resold down the road
    • Includes the rugged JB4 billet aluminium enclosure for protection
    • Made in the USA
    • 5-year warranty


    Mercedes-Benz Vehicle Fitment

    • 2015

    -Present Mercedes-Benz C63 & C63S AMG

    • 2017

    -Present Mercedes-Benz E63 & E63S AMG

    • 2015-Present Mercedes-Benz AMG GT and AMG GT S

    • 2015

    -Present Mercedes-Benz GLC 63 & 63S AMG

    AMG GT
    • 2018-Present Mercedes-Benz AMG GT 63 & 63S