I don't know what goes on down there johnny, but up here in QLD there has been a little fight brewing by some stirrers at scrutineering about eleigibility of coilovers. The PRC rules state that suspension components may be replaced/upgraded but must still be fully interchangeable with the original equipment. This has been loosely interpretted by some people as coilover springs not being interchangeable with the oem springs and therefore not legal. In short though trip, johnny's spot on, go for some new inserts up front and new shocks at the rear (koni or bilstiens are good) and keep it at standard ride height or slightly higher.