Faster and Easier to Use than Ever Before
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 smartphone.
The Vance & Hines FP4 was launched with our legendary fuel tuning and performance for 2021-2022 Harley-Davidson Touring, Softail, and CVO models, with all new features, and the ease of use you expect from Vance & Hines.
Now the next generation FP4 tuning platform is also available for all CAN-Bus Harley-Davidson models including 2014-2020 Touring, 2011-2020 Softail, 2012-2017 Dyna, 2014-2022 Sportster and 2014-2020 Street.
HDI motorcycle compatibility is available now!
Refine the Riding Experience
Improved Auto Tune Feature
For advanced users, the FP4 gives you full access to critical ECU tables right in the app. Change your idle RPM, raise your rev limit, or adjust tables including VE, Target Air Fuel Ratio, and Spark Advance, all from your smartphone.