As far as I know there are three PRs: Mulfab, SSL and SiFab, all a little different. Mulfab and SSL can be checked out on the net, but I cannot find any info on the Sifab. Mine is SSL, though - worked fine in both fitting and when driving. And excuse the thread drift.....
Robbie the Norseman 2004 V6 Roadster Sherwood green