Fire extinguishers are mandatory in all cars that will see the track and should be mandatory in all street cars. There 's no worse feeling then watching your car burn to the ground without the ability to do anything about it. Unlike most fire extinguisher mounts available, this rennline mount installs directly to the factory driver 's seat and does not compromise seat travel or leg room in anyway. Constructed from aircraft grade aluminum and meets all requirements for racing series or other organized track events. Designed to be used with most standard 2.5lb fire extinguishers, all hardware and installation instructions are included. Available for both power and manual drivers seat. Does not fit sport adaptive seats.