This product is geared toward NMRA competitors and other Mustang enthusiasts who store their 'Stangs inside enclosed trailers or in their garages at home. H3R's [(800) 249-4289; www.h3rperformance.com] new HalGuard Automatic Fire Suppression System (PN HG4500S/75-pound and HG5500S/85-pound) is a super-sized version of the popular (and effective) portable fire extinguishers we've used in past projects. The system's steel cylinder, which can be mounted on the trailer's ceiling or in a corner of the garage, features a thermally actuated head that triggers a discharge of HalGuard whenever it senses temperature higher than its rating. HalGuard is a clean, nonconducting, residue-free agent, so cleanup is simple if the system is ever called on to save your 'Stang.