Cusco 311 475 A Type I Lower Arm Bar Front Chassis Brace

The Cusco 311 475 A Type I Lower Arm Bar is a front chassis brace engineered to improve body rigidity and suspension performance. Constructed from tubular, high-tension lightweight aluminum and finished in anti-corrosive paint, this bar is built to withstand the elements while keeping unsprung weight to a minimum.

By firmly connecting the left and right lower arm mounting points, the Type I lower arm bar minimizes suspension alignment flex and suppresses chassis deformation under load. The result is a noticeable improvement in steering rigidity, throttle response, and traction — especially during hard cornering.

Key Features:

• Tubular high-tension aluminum construction for strength without added weight
• Anti-corrosive paint finish for long-term durability
• 2-point design connects left and right lower arm mounts
• Reduces body flex and maintains suspension geometry under hard cornering
• Improves steering response, traction, and overall chassis feel
• Bolt-on installation using standard hand tools
• Includes all required mounting hardware

The Cusco Type I Lower Arm Bar is an excellent chassis upgrade for performance-oriented driving, autocross, and track use. Its simple bolt-on design makes it accessible to enthusiasts of all skill levels with no cutting or welding required.