Hi, I bought a set some months back for my air cooled. i have only had a trial fit and they fit reasonably well, as with all these things some fettling is required to get the fit you want. As the air cooled and bis are essentially the same body shape I.e. Corner panels I don't see any problem fitting to you bis. There is another member who I believe has them on his air cooled, he posted some photos of a trial fits few months back.
Ralph