jap vehicles also have different parts used too, hondas for example can not use uk spec exhausts as they are too short compared to the uk ones
there are specialists who do jap car parts ( blueprint, nipparts ect ) but theres gonna be a piss taking loading on it if its jap part only !
im doing alot of research on jap stuff for work and have been for the last few months,,,,, its a bastard to say the least !!!