f4i to 03 rr tail swap
 

I was wondering, as far as the rr tail plastic goes, will i need to switch out the elctrical setting box? and obviously ill need to swap the actual seats?

It's not a simple bolt on swap. You will need to do some fab work to the sub frame and tail section to make it fit. If you're tryin to get rid of the "banana" seat, then it's easiest to use the '01-'03 F4i set up. It's a direct bolt on, you'll need the sub frame, fairing, under tail, tail light, and seats.