I used Starperformance to get this done on my wife's Polo a few years ago, unfortunately, I spotted that the bush was accidentally fitted in backwards on one side. They changed it (I supplied new bush) a few weeks later, but, after 12 months, the two front tyres had been worn down enough to fail an MOT - these tyres had been fitted just prior to driving across to Starperformance - so were brand new. Oh and yes they did do the usual four wheel re-alignment first time round - but did they do it again after replacing the O/S bush the second time? I found them okay but was more than a bit annoyed to need to get two new tyres (after 8500 miles) and needing to pay my VW dealer for another four wheel re-alignment. So, the moral of this story is, check both bushes before paying (just in case) both bushes should fit in the same direction - ie the "flat" face to the rear and the concave, or stepped face to the front!