Want more power, torque or economy from your vehicle? With the TDI Tuning Tuning Box, you can greatly improve your vehicle performance. Connect to your TDI-Tuning system to instantly change the performance of your engine and adapt your vehicle to suit any situation. Functionality: – Up-to 40% more power from your engine – Up-to 20% better fuel efficiency – Completely traceless once removed – Refined driving experience – Optional Bluetooth connectivity (please message) – UK Design & Manufacture