Dinan D120-0491 Anti-Roll Bar Fits 06-10 M5 M6Sway Bar Assembly Anti Roll Bar Anti Roll Bar; 21 mm.; Rear; Adjustable; SPECIFICATIONS: Position: Rear WARNING CA Proposition 65: Yes WARNING CA Proposition 65 Message: WARNING: Cancer and Reproductive Harm www. P65Warnings. ca. gov FEATURES: Improves Grip And Stability By Reducing Body Roll Adjustable w 3 Positions On The Bar For Easy Adjustment Body Roll Lowering Keeps Your Vehicle More Level Than Stock Gives The Driver Much More Planted And