Performance tuning for your BMW gives it more efficient and effective ECU mapping which favor power delivery over comfort. BMW tuning legend Jim Conforti produces incredible software tunes for nearly every model to give drivers a noticeable upgrade in their car's capabilities. The Turner Chips, Shark Injectors, Sprint Boosters, and Burger Motorsports tuning software and handheld devices are all right here for you to give your BMW the engine management change it deserves.
The JB4 Connect Kit (Rev 3.7) allows your Bluetooth 4.0 compatible iOS and Android devices to connect wirelessly to your JB4. View critical engine data in real time, datalog, read codes, change maps, update settings, update firmware, and more, all from the palm of your hand! The REV3 mounts next to the JB4 in the engine bay eliminating the need to run a BMS DATA cable inside the cabin. It's compatible with all JB4 products. Just plug it in to the JB4 where your BMS DATA cable connects, purchase the JB4 Mobile app, and you're off and running. Please note the JB4 Mobile app is available for iPhone®, iOS®, or Android and sold separately via the Apple® or Android® app store on your phone. The wireless adapter is not compatible with the JB4 windows interface. See our other listings for the "BMS DATA cable" for laptop use.
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The ultimate tune for your S58-powered G80 M3 and G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user-adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support, and built-in advanced CANbus-based diagnostic tools. Installation is easy and completely removable with no splicing or cutting of factory wires making the JB4 an excellent choice for your S58 engine. Wirelessly connect the S58 JB4 to your Bluetooth 4.0 compatible iOS and Android® device via the JB4 Mobile Connect Kit (See T#598298) or to your Windows® laptop with the BMS Data Cable (See T#403193). Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update S58 JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development. A separate JB4 Mobile app purchase is also required. S58 JB4 FEATURES & BENEFITS Gains are 80whp/100wtq on pump gas and up to 150whp/175wtq on higher octane or E85 mixtures. Improves 0-60 times and 1/4 mile times Preloaded with custom S58 JB4 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 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 Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment - JB4 Wireless Mobile Smart Phone Kit Required (See T#598298) The JB4 offers a lot more performance, functionality, and safety than your average performance chip Quick Plug & Play Installation CANbus OBDII integration offering unrivaled 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 aluminum enclosure for protection Made in the USA Free USA Shipping 5-year warranty S58 JB4 Vehicle Fitment: BMW M3 2021+ S58 G80 BMW M3 2021+ S58 G80 BMW M3 Competition BMW M4 2021+ S58 G82 BMW M4 2021+ S58 G82 BMW M4 Competition
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