Vance & Hines, FP4 adjustable fuel injectionFrom 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;
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols