khare I'm guessing you haven't actually done this yourself
you also need to lower the entire subframe to get these bushes out. the bit of metal uyou pointing out there doesnt actually come off the subframe! there is another bolt accessible thru the round hole in the wishbone which needs removing then the subframe will come off. you also have to support the engien and undo the steering uj from the rack to get it to drop down enough.
I finmd the inner bushes dont really wear though, just the outers even on my 180k mk2 they were still nice n stiff! its a mare of a job so if you really want to do it make sure 100% these bushes are worn. in fact I'd never bother doing em unless you change the rool bar for something better, then at least its more worth your time