Lambda emulator -POLINI- YAMAHA 50 4T LC Euro4

To make the engine of the Yamaha Aerox 50 4T E4 even more powerful.
POLINI recommends the following steps:

1° stage - Lambda sensor emulator + Hi-Speed variator.

2° step - Lambda sensor emulator + Hi-Speed variator + cylinder kit + gearbox kit:
Power increase up to 85 km/h