Here are just a couple of notes from my recent racing harness swap. I was bugged with the birds nest of wires on the bike. Granted you may want all of them if you plan on riding on highways, but in Calif. that can never happen. I've always had off road only bikes so I'm used to minimal wiring but usually they have had headlights.
1. The cost, $140.00 isn't too steep, but you could consider just cutting off all the unneeded wires and switches.
2. It takes a few hours to remove and re-route the new harness.
3. There is no connection for a headlight ,so you'll need to locate, and splice in a power and ground wire. Then you will need to decide if you want a switch or have the light on while the bike is running. I decided to stay with the light always on.
4. It'll take a while to become familiar with the new kill switch location.
5. It does give you more room on the handle bars if you need to mount a gps or whatever.
6. There is no connection for the throttle position sensor so you cannot use the race harness if you plan on keeping oil injection. I don't trust oil injection and since my bike is a race edition so I was fine with that.
7. If you want to remove the tps and cap it off on the carb, you'll need to spend another $40 for the cool red anodized cap that is offered as an option.