[TheSt|G]

Originally Posted by Suprgnat

M3/1M strut braces are a viable option.

Available from: http://www.hpashop.com/BMW-128i-135i...tbrace-e82.htm
Quite ridged and, near as I can tell, part of some sort of "rough road" package on lesser BMWs in other parts of the world (South Africa?).

Yeah, it's a decent option. My problem with that is that you are most of the way dollar wise to a Mason setup, and you have to hack up the stock plastic paneling a bit.