Please note that Replacement type for the factory air bypass valve.

HKS Super SQV (Sequential Blow Off Valve) uses a unique sequential valve structure and a differential pressure control system, which allows for a broad operating range from low boost to high boost. Its Pull-Type relief design ensures stable operation regardless of the amount of boost pressure.
The Super SQV will support new generations of turbocharged vehicles.

1.High Quality Aluminum Die-Cast Body
Silver-coated aluminum die-cast body. Combines the ultimate in looks and durability in the engine compartment.

2.High Stiffness Metal Die-Cast Valve
Secondary valve main portion is made of die cast metal. Reliable operation with beautiful looking.

3.Triple Fin design produces "Super Sound"
Triple Fins set at the center of the funnel produces a dynamic and aggressive sound. An optional special Round Fin can be purchased separately for sound tuning.

Parts necessary for installation are included. SQV4 can be easily installed on a vehicle with this kit.

Feature
*This newly designed SQV4D uses a "boost drive controller" for positive boost operation.

*This new system SQV can function on vehicles which have no vacuum, such as diesel engines as well as conventional turbo cars.

*Vehicle specific SQV4D KIT for HIACE Diesel is now available.