HKS Super SQV4 Blow Off Valve Subaru WRX / STI 2002-2007 / Forester XT 2006-2008

Experience the ultimate in performance with the HKS Super SQV4! Featuring a unique sequential valve structure and a differential pressure control system, this blow off valve offers a wide operating range for both low and high boost. Its Pull-Type relief design guarantees stable operation no matter the amount of boost pressure. Join the next generation of turbocharged vehicles with the ultimate grandfather of blow-off valves and its legendary flagship sound. Trust the most effective blow-off valve in the aftermarket - the HKS Super SQV4.

• Pull-type sequential valve structure
• New differential pressure control system allows for stable operating ranges from low to high-boost pressures
• Comes provided with an OEM-like mounting flange to allow users to have a ready installation 

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