The HKS Super SQV4 Black Edition is a high-flow blow-off valve option for forced-induction engines, designed to provide rapid pressure relief and a distinctive sound during throttle lift. The Black Edition's compact design and heritage in motorsport applications make it suitable for turbocharged Subaru and other compatible platforms where an external recirculation or atmospheric venting solution is desired, depending on vehicle setup.
HKS Super SQV4 Black Edition FK8