Aftermarket automobile engine exhaust systems comprised of pipes, collectors, mufflers, and particulate traps; Engine exhaust systems comprised of pipes, collector and muffler; Engine exhaust system comprised of a particulate trap; Engine or motor mufflers; Engine mufflers; Exhaust manifold for engines; Exhaust mufflers for motors; Automotive exhaust pipe; Exhaust pipes for land vehicles; Exhaust silencers for engines