As above guys, Iv got 235/40 at the moment but there catching the arches and I really dont want to cut back the metal lip.. bodykits not an issue but i know its still going to catch the metal.. So Iv got one spare toyo proxy t1r in 215/40 so to solve my catching issues I have to buy one more tyre only.. But my question is how will a 215/40 cope on the rear.. Ie traction wise etc