Makes it possible to adjust cruise for best fuel economy as well as larger throttle openings for peak power User can specify what air/fuel ratio to make each rpm and throttle position percentage combination Includes 18mm O? sensors and power connector that plugs into the bike's harness Base settings included for air/fuel ratios, but are fully adjustable if need be Plugs directly into the Power Vision with a single cable Provides real-time AFR feedback to the Power Vision Allows for semi-automated fuel corrections Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their sensor bungs. Made in the U.S.A.. AUTOTUNE KIT HAR J1850 WB