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Recalibrate your machine's electronic fuel injection parameters and unlock optimized power delivery by installing the Vance & Hines Fuelpak FP4 Tuning Module. Engineered for 2021-2023 Harley-Davidson Touring, Softail, and Pan America platforms, this compact, waterproof ECU tuner plugs directly into your factory diagnostic port, establishing a high-speed Bluetooth link to your smartphone to overwrite restrictive stock emission fuel tables with high-performance engine maps.
Factory ECM mapping runs notoriously lean to meet strict environmental regulations, causing high cylinder head temperatures, sluggish low-end throttle tracking, and exhaust popping when you mount high-flow pipes or air air intakes. Vance & Hines eliminates this lean performance bottleneck with the redesigned FP4 architecture. Utilizing an advanced, faster processor core housed inside a heavily sealed, compact exterior shell, this module communicates instantly with your phone's iOS or Android app. It downloads dyno-tested performance maps from a massive cloud database, reconfiguring your vehicle's spark timing, volumetric efficiency cells, and air-fuel ratio metrics to achieve cooler engine temperatures, sharper throttle response, and maximum horsepower curves.
Unlike basic tuning chips that only manipulate sensor voltage signals, the FP4 flashes the flash memory of your factory engine control module. While riding, the active Auto-Tune feature leverages your bike's factory O2 sensors to track atmospheric changes and engine load inputs, continuously refining your custom map to fit your exact riding style. The smartphone app interface functions as an interactive auxiliary gauge panel, allowing you to monitor real-time critical data streams including engine cylinder temperature, precise engine RPM, gear position, active loop status, and diagnostic trouble codes (DTCs) simultaneously.
The Vance & Hines FP4 Tuning Module features a model-specific data protocol layer engineered explicitly to match the updated electronics architecture of 2021, 2022, and 2023 Harley-Davidson platforms. It provides an immediate plug-and-play electronics performance upgrade for the following lineups:
Please Note: This module interfaces using a vehicle-specific pin configuration. Once plugged into a motorcycle and flashed for the first time, the FP4 permanently locks its unique internal serial ID number to that specific vehicle's VIN code and cannot be transferred or reused on another machine.
Installation Tip: Electronics and powertrain safety is paramount. Always ensure your vehicle's battery is fully charged or connected to a reliable battery tender prior to executing a flash download. Interrupting power to the module or turning off the ignition switch during an active ECM flash sequence can corrupt the internal memory of your vehicle's computer.
Don't let restricted factory software choke out the true potential of your V-Twin engine or adventure bike. Your premium electronic tuning components are handled via Fast Shipping, processing out of our fulfillment network the same or next business day depending on checkout time. Best of all, because this flagship tuning module clears our store minimum, you automatically receive Free Shipping on your entire order!
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