When adding a slip-on or full exhaust system to the 2013> Daytona you no longer have to worry about the FI light (error light) coming on the dash. The problem is if you just unplug the servo motor from the bike it triggers the FI light on the dashboard. This is not only annoying, but it keeps you from knowing if there is another "real" problem with the bikes systems. By installing the small, lightweight, ESRM-2 you will keep the FI light from coming on and it will also turn it off if you have already removed the servo and triggered the light. Additionally, you will decrease weight.