YEC's complete harness assembly replaces your original 2015/2016 R1's OEM harness with a lig..
FITMENT: Yamaha R1 2009-2014..
Yamaha R1 YEC ECU enables you to adjust the amount of fuel injection, ignition timing, and additiona..
This complete kit allows you to retrofit your R1 or R1S with the complete CCU kit found on the R1M. ..