1. You will not be able to use the stock O2 sensor location. If you try, the Bosch wideband 02 sensor will hit the crankcase and prevent you from bolting up the pipes. Purchase a bolt with 10mm threads and plug the stock sensor.
2. You will have to cut the Dynojet provided bung in half.
3. You will have to drill a 5/8" hole 1" to 1 1/4" from the stock sensor location. A stepped drill works great for this.
4. You must drill the hole 1" to 1 1/8" from the stock sensor to hit the sweet spot between end of the crankcase and the swing-arm bracket. However should you drill 1 1/4" from sensor the Bosch sensor will hit the bracket bolted to the right side rider peg.
5. Have the cut bung welded to the pipe. Install sensor and then bolt up pipes.
6. Do NOT use the yellow wire that you think might be to the brake lights as power. The LED lights do not draw 12v. This was verified by the tech at Dynojet. If you do, the Autotune will flash a red light for longer than the required 30 - 60 seconds to warm up.
Use the posi-tap provided and tap into the red power wire from the white two pin connector with the black and brown wires that you plugged the PCV into. Or any other 12v source. Voltmeter would be very handy at this point.
7. Verify solid red light on Autotune after it has warmed up, about 30 seconds and a solid green light in the PCV.
Viola, you are finished!
Edit to add: Happy Thanksgiving!!