VooDoo13's 2008-2012 Subaru WRX/STi Rear Lower Control Arms are designed, engineered and tested on race tracks across the globe using feedback of top tier drivers and technical directors. Precision CNC machined from high strength aluminum and coated in MIL-A-8625 Type III Hard Anodize. Heat treated Chromoly Steel rod ends and Grade 8 hardware is used to ensure they will withstand abuse from street cars and track cars alike. These control arms offer a considerable increase in strength and rigidity over the OEM stamped steel arms that are prone to flex under stress due to their thin wall construction. Three shock angle mounting and three sway bar mounting positions are available which provide you with the ultimate in suspension tuning. The mounting location to the hub is designed to allow for 18mm of drop. Camber can also be adjusted which allows the user to reduce tire wear and improve handling and stability.Voodoo13 uses QA1 XM Chromoly Steel rod ends that are heat treated for strength and durability. The spherical rod end is self-sealing and self-lubricated because of their Nylon/PTFE injection molded race that keeps out dirt and debris.All of Voodoo13's products are engineered, manufactured, and assembled at their Gilbert, Arizona facility using only the best materials from US suppliers.