9-5 Anti-Roll Bar Upgrade Kit Upgrade early cars to the Aero 2002-> Specification. Greatly enhance roadholding without sacrificing ride quality. Set of Factory Saab front and rear bars with associated bushings. Special combination of factory Saab parts not avaialble with the standard sports-chassis. Upgrade bars (new 02-04 Aero) 21f / 17r Old Sports chassis (Aero 2000-2001) also (02-04 Linear, Arc) 20f / 17r Old Base model 19f / 16r