7 Aftermarket automobile engine exhaust systems comprised of ., pipes, collectors, mufflers, particulate traps,; Automotive exhaust pipe; Engine exhaust system comprised of a particulate trap; Exhaust pipes for land vehicles; Exhaust silencers for engines; Exhausts for motors and engines; Headers as part of vehicle exhaust system; Intake and exhaust air flow vane assembly device for use in an internal combustion engine; Oil filters