Apparently one of my lower control arm bushings is slightly torn and could do with replacement shortly. Local indy is quoting €217 + VAT for the OEM part. As I am close to getting a Birds B3 suspension kit (shocks and springs) is it worth considering replacing all 4 control arms with M3 parts (OEM or spurious eg TRW) or would there be any difference to OEM 335d/i parts?

This thread got me thinking http://www.e90post.com/forums/showthread.php?t=788761 and a very quick search showed something like this http://www.ebay.com/itm/BMW-E92-E93-...-/151491629784

Thanks! :-)