since my wife has traded her Justa for an S, i find myself not really digging the stock exhaust tips. while they are nice and shiny, i prefer a non rolled tip over these. so my question is this. where can i find the JCW tips only? are the tips the only difference in the exhaust systems on the regular S and the JCWS? i know i could get an exhaust shop to get something similar, but i prefer an actual Mini part if possible.