This unit ONLY fits: 2014 - Up Harley-Davidson Motorcycles with 4 pin O2 sensors.

Dynojet’s new Target Tune is an exciting new product that can add a new dimension to your Harley-Davidson® ECM. When paired with a Target Tune specific calibration flashed by a Power Vision, your ECM will run closed loop fuel control based on wideband O2 sensors. The Power Vision delivered calibration changes the coding in the ECM to “understand” the wideband signal (from Target Tune) and allows the ECM to accurately achieve the target AFR.

Features:
Allows Factory ECM to interpret and use wideband O2 sensor signals*
Target fuel table from the calibration/tune is achieved in real time
Retains OEM closed loop, adaptive fuel control strategy
Learns and uses VE table corrections as you ride
Does NOT interfere with dealer diagnostic/service tools
Includes OEM style connectors to plug into factory 4 pin O2 harness. 2 pin harnesses are also available upon request. 
Requirements:
18 mm O2 sensor ports (comes with 2 sensor ports that can be welded into the head pipe if you need)
Power Vision - You must also have a Power Vision which will be used to flash a Target Tune specific map.