HKS continues its traditional pull-type SSQ blow-off valve with the SQV4 Black Edition series. This will some with a factory-like flange to bolt right up to the Subaru WRX/STI.

HKS SQV4 Black Edition Blow-Off Valve

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SPECS:

• Black Edition
• Pull-type sequential valve structure
• The new differential pressure control system allows for stable operating ranges from low to high-boost pressures
• Includes vacuum line filter
• Includes circlip, T-fittings, zip ties, and plugs for the intake side to run fully atmospheric

HKS EVOLVES THEIR TRADITIONAL SSQ SYLE BOV WITH THE NEW SQV4 BLACK EDITION BLOW-OFF VALVE

For those of you who love that flagship HKS SSQ BOV chirp, here is the latest version which is the SQV4 Black Edition Blow-Off Valve. The popular pull-type relief design works quickly to purge boost between shifts to keep that turbo spooling or to quickly relieve the boost under deceleration. A great upgrade especially for those of you with power or boost levels that otherwise surpass the limits of the factory diverter valve.

The SQV4 will come with a factory-like mounting flange to make this ready to bolt-on, and it will come provided with a vacuum line as well as plugs to allow the user to vent this blow-off valve to the atmosphere.