HKS Super SQV4 BOV Black Edition - 2017-2020 Honda Civic Type R Subaru-WRX-2025 If installation simplicity is the

If installation simplicity is the priority

5 BAR MV-S rating

Quiet operation for street use

If you're second guessing your AFR's under boost

HKS Super SQV4 BOV Black Edition - 2017-2020 Honda Civic Type R Subaru-WRX-2025 If installation simplicity is theHKS Super SQV4 BOV Black Edition 2017 2020 Honda Civic Type R Sequential Suction Valve Technology The HKS Super SQV (Sequential Suction Valve) is developed through HKS's turbocharger engineering program a company that builds complete turbo kits understands what happens at the compressor inlet. The SQV4 uses a sequential valve mechanism that provides smooth boost response across the full pressure range, protecting the compressor wheel from surge and