HKS Super SQV4 is a sequential pull-type blow-off valve for the Nissan Skyline ER34 and ECR33 with the RB25DET turbo engine. This package is the return-kit version, supplying the recirculation (plumb-back) tube and model-specific adapter so vented air routes back into the intake for clean idle and surge protection on a closed system. The two-stage piston delivers a sharp release and quick recovery.
Specifications
| Type | Sequential blow-off valve with return kit (Super SQV4) |
| Fitment | Nissan Skyline ER34 / ECR33 - RB25DET |
| Venting | Recirculating (return kit included) |
| Includes | SQV4 valve, recirculation return tube and vehicle-specific adapter |
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