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The Turbo XS RFL blow‑off valve is a Type XS replacement for 2002–2007 Subaru WRX/STi applications (supersedes WS‑RFL). As a blow‑off valve option for these models, it serves as an aftermarket valve intended to release excess boost pressure during throttle lift events to help protect the turbocharger and support proper turbo system operation in turbocharged Subaru engines.
Turbo XS 02-07 WRX RFL Blow off Valve BOV
