The Hybrid Valve gives your WRX the reliability of a recirculating Bypass Valve, combined with the power and sound of a Blowoff Valve. This valve both recirculates and vents to atmosphere for the best mixture of reliability, sound, and performance without inducing air-fuel issues. * Built to last from solid aluminium and brass * Computer machined so there is no boost leak * Out-flows factory valves for improved throttle response
