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The Superpro rear sway bar for the 2004 Subaru Impreza WRX STI is a 22mm, three-position adjustable heavy-duty kit that reduces body roll and sharpens cornering. Moving the end-link to different positions can raise bar rates about 30–50% over OE, allowing quick on-car tuning to influence understeer or oversteer for track or street use. Superpro builds the bar for reliable fit and user-friendly adjustability.
SuperPro 2004 Subaru Impreza WRX STI Rear 22mm 3-Position Adjustable HD Sway Bar Kit
