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HKS SSQV4 Blow Off Valve Recirculation Kit - 08-20 STI

When it comes to blow off valves in your Subaru, there are many to choose from, but the HKS valve is the most unique and sought after. Utilizing a pull type relief valve design along with the internal design of the valve, the more boost you run, the tighter the valve seals. With a small primary valve that opens first when you let off the gas, followed by a large secondary valve, it gives one of the most unique and copied sound in the industry.

Made from ultra-high quality aluminu. . . Show More >


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