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Piggyback Tuning Modules
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You've heard about it before, and now it's available here at Turner Motorsport! The Burger Motorsport JB4 Tuner is one of the most versatile, adaptable modifications you can make to your BMW, and among the simplest to install. A true plug & play solution, the JB4 offers support for everything from stock cars to fully built monsters. Stock cars can expect gains of up to 60 wheel horsepower, while modified cars can expect to see gains of over 100 WHP! With an additional cable, you can connect your smart device or laptop to enjoy datalogging and tuning capabilities. It's all inclusive and fully featured - it's the JB4 from Turner Motorsport. Order yours today!
Burger Motorsports Tuning Products are for off-road racing use only - NOT FOR SALE OR USE IN CALIFORNIA! All customers must sign and return an emissions waiver to purchase Burger Motorsports tuning products.
This product was last offered at the strikethrough price on
05-19-2026
Elevate your BMW's performance with the Burger Motorsports JB4 module, delivering remarkable power gains of up to 80hp and 100tq to the wheels for stock vehicles. This plug-and-play installation enhances the F90 M5, offering unparalleled performance and pushing its quarter-mile potential deep into the 10s.
Featuring full CANbus integration, the JB4 stands out with advanced tuning features, safety functionalities, and diagnostics, setting it apart from generic tuning devices. Its electronic wastegate control ensures precise boost targeting, making it the ultimate tuning box for your //M.
Note: Intended for off-road racing use only. Not for sale or use in California. Emissions compliance waiver required for purchase.