Anyone fitted 17's b4. my brothers got a GSI with 15's on it and hes cut the arches at the back but its still pretty damn close even with 15's. If he wants to get some 17's on there what else would be needed to be done to the rear arches.
P.S he has an AVO Coilover kit with adjustable height and damper shocks, dont know if that helped.
Any advice would be much appreciated.