I have had a new rear anti roll bar made for the Q4 - its a 24mm one as compared to the 19.25mm one that is original. It cost $270.00 (AUD). Also here are some pictures of the new springs that I have gone with for the front (D2) Struts - with the 'original' ones for comparison. They are 65mm dia / 180mm free / 650lbs/inch.
cheers, jim.
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