I already posted this on Bimmerforums, but I'd like as wide range of responses as possible, so I'm going to repost this here: Currently the car has Bilstein Sport shocks and H&R Sport springs. I'm not looking to change the springs, though if it comes down to it, I will. What I'm looking for is to buy a swaybar kit that would significantly reduce body roll and perhaps help a little with the slight understeer I get around tight turns on the auto-x course. I understand that the S50 is about 60lbs heavier than the M20 I had in there before. This probably contributes in a small part to some of the understeer I get. If I remember correctly, the swaybars I have stock are 19 or 20mm front and 12mm in the rear. I know there are kits out there that are adjustable, with a fixed size. How do the adjustments affect the car? Where are these adjustment points (i.e. is it easy to adjust just by jacking up the car and tweaking with the settings)? What thickness am I looking for front and rear? Does anyone have any experience with certain thickness bars and setups? Finally, what brands and thicknesses are recommended for auto-x, track, AND daily driving? I'm content with the "jarring" associated with thicker swaybars when going over potholes/bumps, so I understand that getting swaybars means sacrificing a little daily drivability for performance, though I would like to know how much worse is it? Thank you for any help that can be provided.