How thick in diameter is the Supra one? The Camaro ones run 1 inch. But unless the tech really knows his stuff, someone could get away with running a Camaro one since it mounts up the same as the OEM Toyota sway bar.Can't run aftermarket because of race rules? I was going to suggest an 80's Camaro/Firebird rear sway bar, as it is thicker than the Supra one. 83Celwa runs one in the front of the Celipra to clear the 6M.