Fuel filters; Air filters for automobile engines; Air filters for vehicle motors and engines; Air-intake tubes and filters for after-market installation of automotive engines; Automotive exhaust pipe; Automotive frame stretching machines; Automotive intake manifolds; Carburetters; Exhaust manifold for engines; Exhaust mufflers for motors; Exhaust pipes for land vehicles; Pressure transducers and transmitters that convert hydraulic or pneumatic pressure into analog electrical signals for monit...