BMW B58 JB4 Tuner (Gen 1 & Gen 2) - Burger Tuning Choose vehicle:Gen2 B58 JB4PRO Stage 2 (450 LPH @

Stage 2 (450 LPH @ 5 Bar) - 50% Increase Over Stock

rear mounted flex fuel kits must use the universal harness

Fitment: Laser-cut mounting brackets and CNC-machined prongs ensure a precise fit with your stock mounting points

70x12 Phillips MAF screws

depending on your specific model

BMW B58 JB4 Tuner (Gen 1 & Gen 2) - Burger Tuning Choose vehicle:Gen2 B58 JB4PRO Stage 2 (450 LPH @Power gains of up to 120whp and 120wtq. on a stock vehicle without the risks of flashing! The JB4 is the most advanced and feature rich tuning system available for BMW's B58 engines, offering significant power gains, seamless integration, and unparalleled ease of use. With its plug and play design and innovative features, the JB4 transforms your driving experience without requiring additional modifications. Unlike traditional ECU flash tuning, the JB4