Don't risk breaking your rear sway bar mount on your WRX. This common problem is easily solved with the Hotchkis Tuning Sub Frame Reinforcement Brackets. These brackets are included in our sway bar kits but can be purchased separately in needed. Please note: These brackets do not accept factory bushings. They ship with greasable brackets and 1" bushings for use with Hotchkis sway bars. Bushings for other diameters may be available from Energy Suspension.