Kuryakyn 9182
If you are going to mount the frame directly to your fender, and not use any back plate, you are better off buying the Kuryakyn 3144 part number which is just the frame for $70. The Kuryakyn 9182, which has a universal back plate for metric bikes, was $110. And that is if you can even still get that part number. I was just on their website and it looks like that part number has been replaced with Kuryakyn 9255 which is now $120.
I believe the 3144 frame is the exact same physical frame as both the 9182 and 9255 part numbers. However, the 3144 does not include a back plate and comes with a plug on the end of the wires that is plug and play with the Harley wiring.
So not only is the 3144 part number cheaper, it plugs right in.
At least that is what they claim on their website.