SpeedBox 3.3 B.Tuning per motori Yamaha PW-X3, PW-S2 e Yamaha YDX-Moro 05, 07
The SpeedBox 3.3 B.Tuning chip is a top-notch product perfectly optimized for the most powerful ride and experience. It suppresses the speed limiter so you can enjoy your ride at unlimited speed. How does Speedbox Work?.