The ultimate freestyle exhaust system. Designed for flat water freestyle and free ride, the PFP exhaust optimizes the power band of most modified jet ski engines. The exhaust manifold bolts up to any Yamaha 701 exhaust bolt pattern. PFP also produces an adapter plate that bolts to any Polaris 700/800 exhaust pattern. The PowerFactor dry exhaust, is designed so nothing interferes with the engines top end. This allows for any combination of top ends (Bore, Stroke, and Exhaust Valves, etc). It also allows easy access to engine components. The exhaust will fit most hulls, Yamaha SuperJet, Polaris Octane, XScream Hulls, Lenzi Hulls, Rickter Hulls, and EME Hulls. Chambers and manifolds are not sold separately. Chambers come in silver, no powder coating.