Pretty sure this is a bad idea, but here we go...
Running 325/30/19" (11 inch width) rears = 26.7" diameter. Only size 325 I can find.
Threw PP1 rear wheels (w/5mm spacer) up front. 275/40/19" = 27.7".
Adjusted coil-overs. I think it handles amazing; don't care that it looks stupid...