The KPL-200011 is used when you replace the stock air intake on Harley-Davidsons with an active air flap. The plug fits into the socket left when the Active air flap solenoid is removed. Fitting the plug stops the ECU from indicating a Diagnostic Trouble Code. This plug is now included in all big twin PowerPro kits.

The KPL-200022 is used when the standard headers are replaced or you just want to remove the junk that operates the active exhaust valve. Remove the actve exhaust motor and gearbox unit and plug this into the loom and hey presto - no Diagnostic Trouble Codes.