Aftermarket automobile engine exhaust systems comprised of pipes, collectors, mufflers, particulate traps,; Air brushes for applying paint; Filter elements for fuel filters; Filters for cleaning cooling air, for engines; Filter silencers for machines; Fuel filters; oil, gas, air filters for motors and engines; Paint sprayers; Spray guns for paint; Spray paint systems comprised of pumps, pump controllers, nozzles, tubing and valves; Sub-micron fuel filters for diesel exhaust fluid; Vacuum pumps