Yamaha R1 YEC ECU enables you to adjust the amount of fuel injection, ignition timing, and additional functionality on your Yamaha R1. The ECU includes two “maps” pre-loaded from the factory= Supersport and Superbike. To take advantage of these maps you will need a Kit Harness (sold seperately).

The 2012-2014 YEC Kit ECU includes traction control functionality.

These ECUs are for racing use only and may remove some functionality of your OEM dash, such as speed indication.

Use the dropdown box above to select the correct ECU for your R1.

 1KB-8591A-70

14B-8591A-70-00