BMW X3 ENGINE TUNING KITS

This digital tuning system perfects your engine's performance resulting in increased torque levels, a wider power band, reduced CO2 emissions, improved fuel economy and 0-60 time.

This Tuning Kit does not exceed any of the security or safety parameters set by the vehicle manufacturer and cannot harm your engine. In the unlikely event of the tuning box developing a component failure, the box is covered by a full lifetime replacement warranty.