I'm going to be getting a set of hoosiers new drag racing slicks but they only come in 245/45/17 anyone know if the will clear on a 04 sti with prodrive springs ?
Blue or red Prodrives? The blues drop more than the red ones. Either way, my guess would be you'll be fine; I had 245/45s on my 05 with STi pink springs, plenty of room all around.
I have 255's (not slicks though) on mine, with prodrive springs and rear fenders rolled. I would think you will be fine.