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The HKS SSQV4 blow‑off valve kit is a direct aftermarket BOV solution for 2002–2007 Subaru WRX and 2004–2007 WRX STi turbocharged applications. The SSQV4 is intended to control compressor surge and venting behavior on turbo systems, offering a compact valve assembly tuned for responsive operation in those Subaru turbo platforms where a quality recirculation/venting valve is required.
HKS 02-07 WRX/ 04-07 STi SSQV4 BOV Kit
