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The Torque Solution HKS blow-off valve adapter flange provides a direct-fit interface for HKS-style BOVs on Subaru WRX and STi models. It adapts the aftermarket valve to the vehicle’s boost plumbing while maintaining factory mounting alignment. Use this flange when installing HKS valves to ensure proper sealing and placement without fabricating custom connections.
Torque Solution HKS BOV Adapter Flange: Subaru WRX / STi
