Description Reviews USED MINI Cooper S JCW Exhaust Tips 18-30-2-349-677. This is a lightly used set of MINI Cooper S JCW exhaust tip covers with polished stainless steel and gloss carbon fiber. These covers are extremely large for a very aggressive look and they fit over your stock exhaust tips for a very easy install and secure with a set screw on the bottom. The new tips will touch in the center between the tips slightly, as this was they way they were designed. Even tho they are used, they are in very good shape and the set screws move freely. This set is marked down from the new OEM price. These are an official set of MINI JCW covers. Part number is 18-30-2-349-677 or 18-30-2-468-715. May fit other systems as well. 68mm inside dimensions measurement if fitting to an aftermarket or custom exhaust. Final sale with no returns.