Description
Unleash Your BMW’s Potential with the JB4 Tuner!
Power Gains of up to 100hp on a Stock Vehicle without Flashing Risks!
Are you ready to transform your B58 and B48 BMW into a high-performance machine? The JB4 Tuner is the most advanced and feature-packed tuning system on the market. Gain up to 80hp to the wheels (100hp crank) on a stock B58 and 40hp to the wheels (55hp crank) on a stock B48. With additional modifications, higher octane fuel, E85 mixtures, and larger turbos, the gains can be even higher!
Key Features & Benefits
- Power Gains: Up to 100hp to the wheels on a stock vehicle
- Improved Performance: Enhances 0-60 times and 1/4 mile times
- Custom Tuning Software: Preloaded with up to 8 maps for various fuel and modification levels
- E85 Compatibility: Ethanol tuning maps included
- Real-Time Data: View and record up to 40 different gauges/engine parameters with the JB4 app
- Boost by Gear Control: Perfect launch control via the JB4 app
- Exhaust Flap Operation: Control exhaust flap in most JB4 applications
- Quick Installation: Plug & Play with no special tools required
- CANbus OBDII Integration: Unrivaled tuning features and performance
- Smooth Operation: Runs as smoothly as stock
- Fuel Economy: Unchanged during normal driving
- 91 Octane Fuel or Better: Required for performance gains
- Non-VIN Locked: Removable without a trace and resellable
- Durable: Includes a rugged JB4 billet aluminum enclosure
- Made in the USA: With a 5-year warranty
- Free USA Shipping: Delivered to your door
Installation and Use
The JB4 Tuner is simple to install and can be done at home without special tools. It does not require any user setup or customization, making it easy for beginners. For advanced users, the BMS DATA cable or REV3 mobile phone adapter allows for logging, new feature additions, and more.
Wireless Connectivity
Connect the JB4 to your Bluetooth 4.0 compatible iOS or Android device with the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options enable you to record and analyze vehicle data, change performance maps, and update firmware with new features and powerful maps. A separate JB4 Mobile app purchase is required.
JB4 Map Guide
- Map0: Stock tuning, fully disable JB4
- Map1: 3psi over stock (91 octane)
- Map2: 4psi over stock (91-93 octane)
- Map3: 6psi over stock (93+ octane)
- Map4: Absolute target map, peak 20psi (93+ octane/30% E85, EWG suggested)
- Map5: Absolute target map, peak 22psi (30% E85+ fuel, EWG suggested)
- Map6: Custom tuning map (details on JB4tech.com)
- Map7: Progressive WMI map with meth flow tuning
- Map8: VALET / Low Boost Map
Compatible Vehicles
The JB4 Tuner is compatible with a wide range of BMW models with B38, B46, B48, and B58 engines. Here are some of the supported vehicles:
BMW 1 Series
- 2020-Present F40 B48 128ti
- 2019-Present F40 B48 M135i
- 2019-2019 F40 B38 118i
- 2015-2019 F20/F21 B58 M140i
- 2016-2019 F20/F21 B48 120i, 125i
- 2015-2019 F20/F21 B38 116i, 118i
BMW 2 Series
- 2022-Present G42 B58 M240i including xDrive
- 2022-Present G42 B48 220i, 230i
- 2016-2021 F22 F23 B58 M240i including xDrive
- 2017-2021 F22 F23 B48 230i including xDrive
- 2017-2021 F22 F23 B48 225i including xDrive
- 2017-2021 F22 F23 B46 220i including xDrive
- 2015-2021 F22 F23 B38 218i
- 2015-2021 F45 F46 B38 216i Active tourer and GT
- 2014-2020 F45 F46 B38 218i, 220i Active tourer and GT
- 2019-Present F44 B48 M235i Gran Coupé including xDrive
BMW 3 Series
- 2020-Present G20 G21 B58 M340i including xDrive
- 2019-Present G20 G21 B46 B48 318i, 320i, 320Li, 320e, 330i, 330e, 320Li including xDrive
- 2016-2018 F30 B58 340i including xDrive
- 2016-2018 F30 B48 330i, 330e including xDrive
- 2016-2018 F30 B48 325i including xDrive
- 2016-2018 F30 B46 320i including xDrive
- 2016-2018 F30 B46 318i including xDrive
BMW 4 Series
- 2021-Present G22 G23 G26 B58 M440i including Gran Coupe and xDrive
- 2021-Present G22 G23 G26 B48 420i, 430i including Gran Coupe and xDrive
- 2016-2020 F32 F33 F36 B58 440i including Gran Coupe and xDrive
- 2016-2020 F32 F33 F36 B48 430i including Gran Coupe and xDrive
- 2016-2020 F32 F33 F36 B48 425i including xDrive
- 2016-2020 F32 F33 F36 B46 420i including xDrive
- 2016-2020 F32 F33 F36 B38 418i
BMW 5 Series
- 2017-Present G30 B58 540i including xDrive
- 2017-Present G30 B46 B48 530i 530e including xDrive
- 2021-Present G30 545e
BMW 6 Series
- 2018-Present G32 G33 B48 B58 630i 640i including xDrive
BMW 7 Series
- 2016-2022 G11 G12 B58 740i including xDrive
- 2016-2022 G11 G12 B48 730i including xDrive
BMW 8 Series
- 2020-Present G15 G14 G16 B58 840i including Gran Coupe and xDrive
BMW X Series
- 2016-2022 F48 B46 B48 X1 28i including xDrive
- 2018-Present F47 B46 B48 X2 28i including xDrive
- 2018-Present G01 B48 B58 X3 2.0i, X3 3.0i, X3 M40i including xDrive
- 2019-Present G02 B48 B58 X4 2.0i, X4 3.0i, X4 M40i including xDrive
- 2019-2022 G05 B58 X5 40i including xDrive
- 2021-2022 G05 B48 X5 45e including xDrive
- 2020-Present G06 B58 X6 40i xDrive
- 2019-2022 G07 B58 X7 40i including xDrive
BMW Z4
- 2019-Present G29 B58 Z4 M40i
- 2019-Present G29 B46 B48 Z4 30i and Z4 20i
Unlock your BMW’s true potential with the JB4 Tuner and experience unparalleled performance and control. Order yours today and enjoy free shipping within the USA!
