Hotchkis Sport Suspension 22826R Rear Sport Sway Bar for the 01 - 06 BMW M3. This Lightweight 1 in. (25mm) Tubular Rear Bar has two settings to make it 79 or 105 stiffer than a stock and includes Rear End Links. Our M3 sport sway bar package increases rear roll stiffness giving the car crisp quick turn - in response and balanced handling. As delivered the M3 handling characteristics are excessive understeer and limited roll control. Hotchkis sway bars give the driver the ability to rotate the car on corner entry and steer with the throttle when necessary. The dreaded understeer is eliminated and the handling becomes comfortably neutral. Hotchkis sway bars feature a durable powder coat finish greasable bushings performance rear end links and 6 different tuning rates via multiple end link positioning.