Aftermarket automobile engine exhaust systems comprised of pipes, collectors, mufflers, particulate traps; Automotive exhaust pipe; Automotive intake manifolds; Catalytic converters; Catalytic converters for motors and engines; Engine exhaust tips; Engine mufflers; Exhaust manifold for engines; Exhaust mufflers for motors; Exhaust silencers for engines; Mufflers for motors and engines; Silencers as part of vehicle exhaust systems; Spark plug ignition wires