Enhance your Harley-Davidson’s performance with the Vance & Hines Fuelpak 4 Tuning Module. Designed specifically for M8 engines from 2006 to the present, this tuning module offers unparalleled precision and performance. The Fuelpak 4 connects via Bluetooth to your smartphone, allowing for easy access to autotune and pre-programmed maps. Experience increased horsepower, torque, and a smoother ride with this state-of-the-art tuning module. Ideal for both seasoned riders and new enthusiasts, this module includes all necessary hardware and is proudly made in the USA.