my brother has just bought some 18s for his st170, fitted them today and the scrub like fuck!
They are 18s, 7.5j and have 225 40 tires fitted. They are offset et42.

The wheels were fitted to a focus rs, and i have seen standard rs wheels on a st170, so surprised these ones catch.

Would changing the tires to 215 35s sort it, or are they always gonna scrub?