Originally Posted by Richbot
E46 front suspension is very different from the E9x, as different as two mcpherson strut setups can be anyway. Take a look at the knuckle design and the lower control arms. The correct answer on an E9x doesn't appear to be to stop the suspension from moving so it can't screw up the tires, though if you're stuck with soft spring rates for whatever reason, a stiffer front bar does help
I'm stuck with soft dinan springs right now.