BMW S68 JB4 Tuner - Stage 2 Track Day & Fast Road Tuning

The JB4 for BMW S68 engines delivers real-world gains: up to 100whp on 91 RON, 207whp on E85. Fully reversible, plug-and-play - no coding, no cutting, no trace.

• S68-specific firmware with 8 preloaded maps for fuel, mods and driving style
• Ethanol-ready with dedicated E85 blending support
• Boost-by-gear control (1st-3rd) + electronic wastegate management
• OBDII CANbus integration: read/clear codes, log 40 parameters via JB4PRO app
• Bluetooth 4.0 built-in; billet aluminium housing; 5-year warranty

Not VIN locked. Requires minimum 91 RON. Fits G70, G05, G06, G07 S68 M and ALPINA models.