Don't do it. First, if you maintain your engine in any reasonable fashion with at least decent oil. You're not going to get the buildup that Sea-Foam is describing. We've torn down a number of engines and even the less well taken care of are very clean inside.

A wet clutch is nothing to mess with. The SE6 is pretty forgiving. But the SE5 is extremely particular, as wet clutches go. Put your time and money elsewhere. Change your oil and filters at the correct service intervals and you'll get well over 100,000 miles without oil related issues.