Alas, open diffs for us lowly non M owners. All we get is DSC, that to keep us from being a spot on the wall. I guess drivers of the Ultimate Driving Machine are not considered the Ultimate Drivers by BMW. You can buy one from HIOP at considerable cost.
A forum community dedicated to BMW E46, E90, and F30 owners and enthusiasts. Come join the discussion about M performance, turbo kits, engine swaps, builds, modifications, classifieds, troubleshooting, maintenance, and more!