Want a bit more pep from your 50cc scooter? This Naraku exhaust manifold is a performance upgrade. It's an unthrottled (less restricted) design, made from metal with a shiny chrome finish. It fits 2-stroke, 50cc scooters from brands like Generic, Keeway, and Explorer. The part number is 6740019. By replacing the stock, more restrictive manifold, this one can help improve exhaust flow, which often means better acceleration and a slight power boost. It's brand new, comes with a 2-year warranty from Naraku, and includes the necessary gasket (usually). Installation requires some basic mechanical skill – you'll need to disconnect the old manifold from the engine and the exhaust pipe and bolt this one on. A popular and relatively easy tuning mod for 50cc scooter enthusiasts looking for a simple performance gain.