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- No need to send your ECU in anymore!
- Upgrade your vehicle from your own PC
- Comes with all available Bikeman Performance tunes available for your vehicle
- ECU Flash for Yamaha Sidewinder
- Big horsepower and torque gains at low to mid range power
- Tune designed in our state of the art Snowmobile performance center
- Increased horsepower through our advanced timing and fuel curve
- Lower Exhaust temps due to a more powerful, richer fuel curve
- Choose between 245-260 pump fuel and 270 100 octane fuel tunes
