AKG Motorsport Adjustable Sway Bar Links REAR – E46, Z4Product Description These BMW Adjustable Rear Sway Bar Links for E46, Z4 models allow for the removal of preload on the rear sway bar. Fine tuning your rear sway bar setup requires the ability to adjust your rear sway bar links which cannot be done with the factory end links. These also allow for correcting sway bar clearance issues due to a lowered ride height. The opposing thread patterns on these end links allow them to be quickly and easily