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 best in industry support from our FP4 technicians, all from your smartphone. The Vance & Hines FP4 brings our legendary fuel tuning and performance to your Harley-Davidson models, with all new features, and the ease of use you expect from Vance & Hines.

• Fast and easy to use
• View live sensor data
• Read and clear trouble codes
• Advanced Tuning
• Built-in Decel Pop tool
• Improved Auto Tune Feature
• Throttle Progressivity feature (not available for bikes with RDRS system)
• Advanced Tuning
• Ajustable idle RPM, rev limit,VE tables
• Target Air Fuel Ratio and Spark Advance
• Compatible iOS or Android (*AutoTune currently unavailable for the iOS App)
• Vance & Hines OEM # 66045

Please note that Vance & Hines Fuelpaks are not returnable once connected to your vehicle.