Would anyone have a pair of the originals in good condition that they'd like to part with? These are the ones that cover the plug lead to the cap & they are a long tapered looking part. Sorry I cant put up a pic, but I don't actually have the old ones. I'm also keeping an eye out for a good set of the original air filters. I scored a pair from Steve that are OK & I'll be using them unless I can find a better pair (this is all for a concourse restoration). I'm happy to pay good $$$ for any of these items.

Clinton

Edit: I should have mentioned that the rubber boots I'm chasing are to suit the Bosch caps, not the NGK ones.

If it is what I think it is [rubber boot to cover the wire end of the plug cap] it is a common Bosch piece.It is used on many autos,BMW,Audi,Volvo,VW.

It wouldn't surprise me if it were a common Bosch part, but unfortunately I dont have a sample or anything to go to be able to match it up.