1、Add a blow off valve on the turbo system, which can improve the throttle response and provide an awesome blow off valve turbo sound. 2、With ECU tune and higher boost level, allowing to gain 10‑15% more power over stock, practical to use. 3、Recirculate the air back into the stock plenum or vent it to atmosphere through the KN air filter. 4、Crankcase ventilation filter, with a embossed chrome‑plated steel top with a black rubber base, ideal for racing applications, vintage cars or individuals who want to add some aesthetics to their classic carbureted engine. 5、1in diameter tube, used to push in and clamp directly on to metal or plastic tubing where venting is needed. Constructed with a synthetic filter media it can be cleaned and reused repeatedly. 6、Replacement for RZR all Turbo models, including Turbo S and Pro XP. Machined from 6061 billet aluminum and anodized in a black finish. Item Type: Blow Off Valve Material: Aluminum Alloy + Rubber Fitment: Replacement for Polaris RZR Turbo/Pro XP All Models 1 x Blow Off Valve 1 x Filter 1 x Joint Tube 3 x Pipe Hoop 2 x Sealing Ring 2 x Hose 2 x Connector