HKS 17+ Civic Type R FK8 SSQV IV Blow Off Valve HKS Super Sequential Blow Off Valve for Honda Civic Type R (FK8) Install FK8 Honda Civic Type R Installing RV6 Ceramic Downpipe Front Pipe HKS HKS SSQV IV Blow Off Valve Incl. Return Kit for A90 A91 Toyota GR forge blow off valve atmosphere honda civic tyre r (fk8) turbo 2.0ltr. 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. This Super SQV maximizes the charge response that repeats pressure charging and pressurized air relief by throttle on and off and supports new generations of turbocharged vehicles. NOT CARB LEGAL. WILL NOT SHIP IN CALIFORNIA