Originally Posted by CALWATERBOY
If you replace the stock brace, which is not usually necessary, go M3.
BMW anchors to a center bolt; the bar in the link has no anchor.
A thought: Replacing the brace might be the last thing to do - have you upgraded control arms, camber arms & links, sways, diff; subframe bushings?
I'm am barely starting to mod my car so all of that will be slowly but surely be moded...many thanks for the feed back