JB4 Tuner for S63 F9x M5/M8/X5M/X6M

JB4 Tuner for S63 F9x M5/M8/X5M/X6M

The Burger Motorsports JB4 for the S63-powered F9x BMW M models is a plug-in tuner that sits between the factory sensors and the DME instead of reflashing it, so it works on locked ECUs. It connects at the TMAP sensors and the OBDII port with full CANbus integration, and optional wires let it control the electronic wastegates directly for tighter boost targeting. BMS quotes gains of up to 80 hp and 100 lb-ft at the wheels on a stock car with pump gas.

Key features

• Up to 80 whp and 100 wtq on a stock vehicle (pump gas)
• No ECU flash; compatible with locked ECUs
• Full CANbus integration through the OBDII port
• Optional electronic wastegate control wiring
• Built-in JB4PRO Bluetooth adapter for Bluetooth 4.0 iOS and Android devices
• Multiple maps for different fuels, including E85 blends
• Reads and clears fault codes
• Displays and logs up to 40 engine parameters
• Boost-by-gear control and exhaust flap control on supported vehicles
• Firmware updates via JB4 Mobile or a BMS data cable
• Billet aluminum enclosure; designed and assembled in the USA

Before you order

Fits 2018-2024 BMW F90 M5, M5 Competition and CS; 2020-2025 F92 M8 Coupe and M8 Competition; 2020-2026 F93 M8 Gran Coupe; 2020-2025 F91 M8 Convertible; 2020-2023 F95 X5M and X5M Competition; and 2020-2023 F96 X6M and X6M Competition. The JB4 needs 91 octane or better to deliver its gains. Installation is reversible and the unit is not VIN locked. Send us your year, model and current setup and we will confirm fitment before you order.

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See also: all Burger Motorsports products.

Shipping and returns

Shipping is a flat $80.00 per order to US addresses, and returns are free within 15 days of delivery. Questions before you order? Ask a parts specialist.