Vance & Hines, FP4 adjustable fuel injection

From the team that brought you The Fuelpak FP3, the best-selling ECU tuner in the world for Harley-Davidson motorcycles, the Vance & Hines FP4 is the most intuitive tool on the market, giving you the power to control your motorcycle’s tune, view live sensor data, read and clear trouble codes, and offers the best-in-industry support from our FP4 technicians, all from your mobile device. With its state-of-the-art Bluetooth enabled app-driven technology, FP4 empowers you to do 100% of your tuning from the palm of your hand, all while maintaining 49-state emissions compliance and thereby keeping your Harley-Davidson factory warranty intact. - Access to Download and Flash Dyno-Tuned Maps - Autotune Feature Available - Map Optimization Features Include Decel Pop, Throttle Progressivity, Idle, Rev Limit and Speed Limiter Adjustment - Live Sensor Data Viewing - Read and Clear Trouble Codes