Hi. Im new to this car fitment stuff. I need help if i should get RSR Down or RSR Super Down? Rims size for 19 8.5 and 19 9.5 offsets, 35F and 45 R. Tire size Front 235/35/R19 and Rear 255/30/R19. I would like to get super down but I'm concern if it will rub. what size spacer should i get? Thanks for your help.

 

You will not rub with Super Down (or even air suspension), but you should have performance shocks at Super Down height .. and unfortunately they really don't make any that I am aware of.

If you want to go lower than RS-R Downs, then get coil-overs.

You shouldn't need spacers at the wheel/offset provided.