I get mine from B&B Components for a tenner. https://www.ebay.co.uk/itm/VW-T1-BE...ake:VW&hash=item2ec7a34163:g:tOkAAOxy83JRHLaP
That one is listed as T25 and beetle, isn't the size different? The one they have listed for a Bay doesn't look like SGF https://www.ebay.co.uk/itm/VW-T2-BA...063811?hash=item3394758cc3:g:TYgAAOSwxH1T~dbC Have you fitted these @Bigherb?