HKS SQV4. Super SQV IV Blow Off Valve for the Honda Civic Type R FK8. 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. This kit can also be combined with 13002-AH001 piping kit to create a full piping kit for the Honda Civic FK8 Type R.