if u search a bit ull see like 3+ years ago a guy running kts coilovers 245/40/17 on 17x9+20 5zigens. That’s what i worked from more or less… I actually first fitted 255/40/17 on 17x9+15… then 17x9.5+17 with slightly wider r comp 255/40/17s (that are more like a 265). His car should be somewhere on freshalloy and he has a writeup on it my newb ass at the time was asking him questions too. He had a silver sil80.