I read somewhere that a 28mm was recommended for a cab. I have an Eibach front and as you can imagine trying to find a rear isn't easy. As it's still possible to buy a Sci 16v from VAG I wanted to compare sizes. I think that's the route I'll be taking. Not ideal perhaps but the cab isn't the ideal basis for handling anyway, though any improvement is welcome.
I run an Eicach 21mm front and the Nuespeed 28mm rear, seem to work ok on a tin top but thats not much help to you. Awesome sell the 28mm rear but its about 160
A 16v is going to cost 80-ish anyway so I might as well hang on get a 28mm. Thanks very much for the info!