COBB REAR SWAY BAR MOUNT REINFORCEMENT KIT 2008-2021 WRX/STICB 1005 DESCRIPTION This powder coated brace mounts between the lower tab of the rear sway bar bushing mount and the rear inner lower control arm bolts. This provides added rigidity to the factory sway bar mount which is prone to cracking, especially with an upgraded sway bar. WHY? As the saying goes, you're only as good as you're weakest link. Upgrading the rear sway bar and end links on your Subaru can create added stress on the factory sway bar