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This listing is for SuperPro Front Lower Alloy CTRL Arm Kit STD Align For 08 Subaru Impreza WRX STI

Part Number ALOY0014K

SuperPro is an innovative Australian manufacturer of automotive polyurethane suspension bushings, control arms, swaybars and other suspension components for both 4x4 and performance vehicles. SuperPro is based in Brisbane, Queensland and does all engineering and manufacturing on site, ensuring the best quality product. Engineered to outperform, SuperPro's specially formulated and high-quality components are designed to create suspension solutions for better stability, handling and control in both on and off-road applications.

The SuperPro ALOY0014K combines several front suspension upgrades in one complete kit. Its lightweight alloy control arms are stronger and lighter than the original steel WRX arms, providing an STI-style upgrade with high-performance bushings already installed. The revised anti-lift geometry helps keep the front tires in contact with the road under acceleration, improving traction and allowing power to reach the ground more effectively. SuperPro polyurethane and DuroBall bushings replace the soft, heavily voided original rubber components to reduce control arm movement and deflection. This delivers more consistent suspension geometry, improved grip, sharper steering response, and reduced wheel hop. The rear inner bushings also feature bonded steel shells to minimize friction through the suspension’s range of motion, allowing the springs and dampers to perform more effectively. The kit includes the required installation hardware and new ball joint bosses, avoiding potential reuse issues caused by corrosion on the original components. This standard-geometry version is designed for vehicles with significantly lowered ride heights, wider wheel and tire packages, or aggressive wheel offsets. Unlike the ALOY0015K, it does not add positive caster or move the front wheel forward within the wheel opening, helping reduce the risk of tire contact with the inner fender liner near full steering lock. For additional geometry correction on lowered vehicles, pair this kit with the SuperPro TRC0002 Roll Center and Bump Steer Correction Kit.

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