BMW 4 Serie Tuning Boxes
The E3 Performance Tuning Box is unique: it's the only tuning box with overheating protection. Therefore the E3 Performance box is the safest way to improve the power and torque of your BMW 4 Serie.
Select your BMW 4 Serie generation:
Contact us if you can't find the generation of your car in our application list. If it's a recent generation, the E3 Performance tuning box might be in development.