The lower profile of this front side bulkheads allows the air tray to stay paid off for improved CG. The top of shock mount place can be integrated into the bulkhead eliminating the necessity for another shock tower and produces one more flex modification the front suspension using included cross brace. Aluminum bulkheads are CNC-machined from premium Swiss 7075 T6 aluminum to provide the lightest & strongest framework the auto. Black coated.