Dynojet Target Tune For Harley If you already have a Dynojet Power Vision installed on your Harley, but you're looking for the next level in performance, you need a Target Tune to convert your bike to a closed loop system. The Target Tune utilizes wide-band sensors to constantly optimize the air/fuel ration of your machine. It is capable of reading all necessary components (air flow, amount of fuel, temperature, and more) and in real time. No longer do you need to worry about bogging down when going through the mountains, or power loss when you see those extreme heat days. Target Tune is constantly monitoring your bike's performance and making adjustments to optimize performance. Features: Performs all functions of Auto Tune Kit, with benefit of real time adjustments Applies real-time changes to maintain peak power Perfect for elevation/temperature changes Includes OEM style connectors to plug into factory O2 harness Uses Wide-Band O2 Sensors capable of reading extreme ranges of air/fuel ratios Without O2 Sensors option available for customers upgrading from Auto Tune Kit(Wide-Band Sensors already installed on your bike) No dynamometer tuning sessions required Made in the USA Options: With O2 Sensors: Includes O2 sensors and Y-adapters. This is correct for most users. Without O2 Sensors: option is intended for users that are upgrading from Power Vision Auto Tune to Power Vision Target Tune. These users should already have wideband O2 sensor hardware and Y-adapters installed from the previously installed Power Vision Auto Tune kit. Note: Requires Power Vision Target Tune specific calibration.