Lower bulkhead with anti-roll club mounting areas, fits front L and back R part. CNC-machined from premium Swiss 7075 T6 aluminum, the bulkhead was created to provide the lightest and strongest possible support framework for the car. Colors anodized in a great orange color, and completed with trendy edging. The T4 platform with extra centralized fat positioning features the littlest and lightest bulkheads which are placed more towards the framework centerline to give you maximum traction, steering, and stability.