The Vance & Hines FP4 is a Bluetooth ECU tuner that lets you manage your Harley-Davidson's fuel delivery and performance from a smartphone app. It stores the OEM map so the ECU can be returned to the factory setup at any time, and supports autotune, downloadable model-specific maps, live sensor data, and reading and clearing trouble codes. The unit maintains 49-state emissions compliance and keeps the factory warranty intact.

Features

• Bluetooth connection to the FP4 app for iOS and Android
• Autotune plus a library of Vance & Hines dyno-developed base maps
• Live sensor data display with configurable gauges
• Read and clear diagnostic trouble codes
• Adjustable idle RPM and rev limit
• Full access to VE, target air-fuel ratio, and spark advance tables for advanced users
• Disables the rear O2 sensor so non-O2 mufflers run without trouble codes
• Stores the OEM map for a return to stock at any time

What's Included

• Vance & Hines FP4 tuning module with OEM-style plug-in connector

Installation Notes

• Plugs directly into the motorcycle's diagnostic connector. No tuner cable required; tuning is done over Bluetooth through the free FP4 app.
• Currently supports Stage 1 component setups.
• Once loaded to a motorcycle the FP4 is locked to that bike and cannot be reused on another.
• Not legal for sale or use in California on pollution-controlled vehicles.