Features: 1. The design of the floating valve allows the valve to respond faster, increases valve travel, and improves resistance to premature and pressurized leakage of the valve. 2. Compared to other products, the design of the floating valve includes an improved adjustable spring system and diaphragm ventilation, maintaining the advantages of other types of propulsion valve construction, heat resistant silicone diaphragm, and valve ratio. Allows the spring and diaphragm to better control the valve and boost. 3. By placing the spring on the valve, it can reduce the need for spring preload, which depends on the idling and light pressurization conditions. Can keep the valve closed during boosting. 4. An adjustable rotating top cap allows adjustment of the hose connector position without complete disassembly. 5. The blow off valve can be configured in one of three operation modes: 50/50, 100% atmosphere, or 100% recirculation. Specification: Condition: New Material: Metal Color: Blue Fitment: Fits Subaru WRX MY01-MY07 Fits Subaru STI MY01-MY15 Package List: 1 x Blow Off Valve 1 x Cover 1 x Gasket 1 x Wrench 1 x Rubber Ring