Designed specifically for the 2007+ BMW N54 twin turbo engine, the Juice Box Performance Tuner provides a safe and effective remap of the factory ECU tuning.
With the exception of gobs of extra power, factory drivability and refinement are preserved. The key is its unique passive design which allows the JB to work in conjunction with the factory ECU. Factory fuel economy is preserved when not racing, and the JB is one of the few N54 tuners that does not cause annoying check engine lights or limp mode conditions.
Installation takes approximately 20 minutes using basic hand tools and is completely plug and play with no cutting of wires.
The JB is not traceable through the factory ECU/DME and can be quickly removed leaving no sign of modification. Installation is very discrete allowing customers to leave the unit installed for basic service.
The additional horsepower and torque profoundly transforms the BMW twin turbo from a mild sports sedan to a true sports car. Power is instant and pushes you deep in to your seat.
Stage 1 adds up to 25 horsepower and 35 torque to the wheels (30hp / 40tq crank), Stage 2 adds up to 50 horsepower and 60 torque to the wheels (60hp / 75tq crank), and Stage 3 adds up to 80 horsepower and 80 torque to the wheels (100hp / 100tq crank).