So I have sourced a set of used red springs for a 1996+ E36 M3 EVO. They have part numbers printed on them, front 75470 and rear 75471.... as to what manufacture they are I am not so sure... there are no markings. The only other number is a date on the rear springs 01.03.07 I've done some searching on the internet but found nothing conclusive... on some forums they thought they could be Dinan, H&R, Eibach, UUC, unless they are some random Chinese imitation job... Any ideas what m