If you've eyed our rear X-brace which was more cost effective than the Laguna Seca brace but still required a rear seat delete you either didn't want to do or did but didn't want to pay the cost of the Boss parts, we now have an alternative that not only lets you keep the rear seats in place, but is much more effective as an actual brace. Our new Steeda Rear Chassis X-brace mounts to the rear shock towers instead of attaching to the sheet metal behind the rear seats. This design is more effective and distributes the loads between the rear shocks, springs and the chassis, and not just the sheet metal of the vehicle. The result is brace that is much more effective at chassis deflection reduction with improved suspension compliance over a sheet metal mount design, and did I mention you get to keep the rear seats? Direct product link for ordering is here:http://www.steeda.com/store/steeda-mustang-rear-chassis-xbrace-555-5093/ These are in stock now and ready to ship.