I assume it's rubbing on the outside?
That +32 on the wheels is going to make fitting a large tire tough. With a +45 on 18x9.5 PF01s I ran 295/30/18 Hoosier R6s on my STI.
Also I ran our custom Ohlins Track Package
with 600# rear springs, whereas you have 400# springs in your off the shelf setup.
How much rear camber are you running?
Yes, rubbing on the outside of the tire. so what would be an option to prevent this, getting stiffer springs? the ride doesn't even feel bouncy at all.. feels super stiff already