The reduced profile for the front side bulkheads enables radio stations tray to sit reduced for improved CG. Top of the surprise mount position can also be integrated into the bulkhead eliminating the necessity for another shock tower and produces an extra flex adjustment for the front suspension making use of included cross brace. Aluminum bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to give you the lightest & strongest framework for the automobile. Black coated.