Fi2000 PowrPro Black Yamaha V Star 1300 The PowrPro Black tuner is equipped with the latest smart chip and accelerometer technology to continuously read the bike's EFI when the bike accelerates in order to optimize the air and fuel mixture for ideal performance. With the Continuously Variable Tuning (Cvt) technology, the PowrPro black will change the tuning world because it now includes the option for fine tuning non acceleration fuel via Bluetooth technology and a smart device based app. This is a new and improved version of their PowrPro fuel tuner as it adjusts instantaneously to current riding conditions. Features: Monitor the injector duty cycle to determine fuel injector performance Add fuel for specific engine modifications tuning the low rpm and cruise fuel zones Monitor how much fuel the units adds in the specific areas with a circular graph as well as light across the bottom of the screen Take away fuel for specific tuning requirements View RPM in real time Reset tool allows the bike to return to stock settings