It's just the strut I'm after though, which I know for the Mk1 is a larger diameter than the ST170, so I can't use ST170 struts on my RS hub carriers, so I just wondered if the Mk2 RS was the same dia.

don't seem to be able to get bilsteins for the Mk1 RS, which is a shame as i have some rear bilstein coilovers for my project, and it would nice to match them up