Burger Motorsports Piggyback Tuning Modules for BMW G99 M5 S68 4.4L

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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.

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Burger Motorsports S68 JB4 Performance Tuner - BMW G90 / G99 BMW M5 S68 4.4L
Burger Motorsports S68 JB4 Performance Tuner - BMW G90 / G99 BMW M5 S...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Burger Motorsports - Corporate Logo
T#:38655159
Part#: BMS-JB4-S68-G909
Ships on Jul 28, 2026
$ 979.00 USD
Free Shipping on orders $49 and up
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$ 979.00 USD
Free Shipping on orders $49 and up
Add to Wish List
JB4 takes your G90 BMW M5 from factory stock to full race-ready performance, offering unmatched tuning capabilities. Designed for easy installation and complete removability, the JB4 requires no splicing or cutting of factory wires, making it the ideal choice for your S68 engine. The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections, making your vehicle much faster. While it's not the only tuning system that operates this way, the JB4 separates itself from the competition with much more advanced connection points and processing, including CANbus, fuel & spark control, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates, adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated, the JB4 has been the gold standard in plug-and-play turbocharged performance tuning for over a decade.
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