Lower bulkhead with anti-roll bar mounting areas, fits front L and back R side. CNC-machined from premium Swiss 7075 T6 aluminum, the bulkhead has been built to give you the lightest and strongest feasible support framework the vehicle. Color anodized in a distinctive orange color, and completed with stylish edging. The T4 platform with more central weight positioning features the smallest and lightest bulkheads being placed more towards the chassis centerline to deliver maximum traction, steering, and stability.