Aluminum lower bulkhead rear - left creates approval to reduce radio stations tray and integrates top of the surprise mount place to remove the need for another shock tower. The bulkheads also include a flex modification the front suspension system using the included cross brace. A corner aluminum bulkheads have a 2mm wheelbase modification for the reduced and top hands for easy traction tuning. CNC-machined from top-notch Swiss 7075 T6 aluminum. Black coated.