Part Number: 71004-AF012
SUBARU Impreza WRX STi 2008 5 Door (GH8) Blowoff Valve
Part Number: 71004-AF012
Dual Valve Design, Sequential System
The HKS Super Sequential Blow-Off Valve (SSQV) is a dual stage pull-type relief valve, which will not leak under any level of boost. THis ensures a quick vlave response and complete closure during idle.
Pull-type blow off valves will work for any turbocharged vehicle, from stock to highly tuned.
Push-type blow off valves require spring load settings for each vehicle specification. If yte spring load setting is too soft, it may leak under high boost and may not reach the desried boost setting. If the spring load setting is too strong, it may not open at low boost. The SSQV will operate under any boost pressure setting without leaking.
The Super Sequential Blow-Off Valve (SSQV) is a pull type relief valve. The SSQV is actuated by pressure alterations only, ensuring quick valve response and complete closure during idle. Typical blow-off valves utilize large valves in order to accommodate high boost/high hp applications. However, these large valves react slowly and require high activation pressure to open. Smaller, fast reacting valves, do not permit the air flow required for high horsepower. The SSQV incorporates both for maximum performance. It is engineered utilizing a small primary valve and a secondary valve for additional relief capacity. The SSQV is made of billet aluminum and emits a unique aggressive sound.
