Namz 4" TBW Throttle Wiring Extension Harness for 2008-2015 Harley-Davidson Touring models - NTBW-X04 This is a professional wire extension set which includes color coded wires with male and female pins installed. These wires are designed to be inserted between the factory wiring harness and factory plug at the base of the handlebars. Used for extending the factory electronic throttle wiring harness when adding taller handlebars. Fits 2008-2015 Harley-Davidson Electra Glide series, Street Glide, Road Glide and Road King models.