Vance & Hines
Vance Hines, FP4 adjustable fuel injection
Vance Hines, FP4 adjustable fuel injection
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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- 49-State Emissions Compliant
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp seven days a week.