Totally new rule, I guess.

But something along the lines of in the SS classes, you are allowed to 'update' base models, to the higher end models as long as they are OEM parts. There are examples of this in actually quite a few bikes/models. I know of people that have 'updated' using parts from the higher end model (as little difference as a different part # for the same basic part) without actually knowing it may have been illegal to do so.

You can have kit wiring harnesses and kit ECU's in the SS classes with very different wiring to a stock bike.....