eva just use a ruler and done i did, confirrmed it's 4x114 now i need 2 get a pair a rotors 2 fit d fackin ting, but d goddam sites don't say wot spacin d rotors r... you confirmed that the USR855 will work, rite?! i found a slotted & dimpled EBC GD855: http://www.summitracing.com/parts/EBC-G ... r...