JB4 BMW B38/B46/B48/B58 JB4 Tuner

Compatibility

Fitment information

Application

Wirelessly Connect to your JB4: Our all-new JB4 PRO smartphone connection is included to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device.; This option allows you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development.; Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look.; JB4 Map Guide for B58 Map0: Stock tuning – JB4 disabled Map1: +3psi over stock (91 octane) Map2: +4psi over stock (91-93 octane) Map3: +6psi over stock (93+ octane) Map4: Absolute target map with peak target of 20psi (93+ octane and/or E30) Map5: Absolute target map with peak target of 22psi (E30+ recommended) Map6: Custom user tuning map Map7: Progressive water/methanol tuning map Map8: Valet / Low boost map This B58 JB4 tuner is compatible with GEN1 and GEN2 B58 engines .; • Displays and logs up to 40 engine parameters.; • Compatible with the free JB4PRO app.; • Compatible with all driving modes.; • 5-year warranty.; BMW; B38; B46; B48; B58; E30; E85; F20; F21; G42; F22; F23; G20; G21; F30; G22; G23; G26; F32; F33; F36

dimensions

N/A

weight

3 kg

Product selection

Before you order

• Match the supplier part number and listed application to your vehicle.
• Check the dimensions and product specification before ordering.
• Contact us if you would like product advice.

Delivery: UK delivery is £7.99, free on orders of £100 or more. Dispatch timing depends on the item and supplier.