Aftermarket automobile engine exhaust systems comprised of pipes, collectors, mufflers, particulate traps; Automotive exhaust pipe; Catalytic converter units for vehicle exhausts; Engine exhaust systems comprised of pipes, collector and muffler; Engine exhaust tips; Exhaust manifold for engines; Exhaust pipes for land vehicles; Exhaust silencers for engines; Headers as part of vehicle exhaust system; Trims for engine exhausts