HKS Super SQV4 Black Edition is a sequential pull-type blow-off valve for the 2008-2014 and 2015+ Subaru WRX STI GRB / VAB chassis with the EJ257 turbo engine. The Black Edition wears a black anodized finish, and this package is the return-kit version supplying the recirculation (plumb-back) tube and model-specific adapter to route vented air back into the intake. The two-stage piston gives a sharp release and quick recovery.
| Type | Sequential blow-off valve with return kit (Super SQV4 Black Edition) |
| Fitment | Subaru WRX STI GRB / VAB (2008-2021) - EJ257 |
| Color | Black Edition |
| Venting | Recirculating (return kit included) |
| Includes | SQV4 valve, recirculation return tube and vehicle-specific adapter |
| Part Number | 71008-KF013VB |
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