HKS Super SQV4 Blow Off Valve & Suction Return Kit - 2015-2021 WRX

Here, you are looking at the HKS SQ4 Sequential BOV designed for high-pressure applications for your racecar, rally car, or your daily driver. This is the grandfather of blow-off valves with its flagship sound that remains to be one of the most effective blow-off valves in the aftermarket.

DETAILS:

• Pull-type sequential valve structure
• New differential pressure control system allows for stable operating ranges from low to high-boost pressures
• Includes vacuum line filter
• Includes circlip, T-fittings, and zip ties
• Includes hose and clamps
• Includes factory-like flange to bolt onto the intercooler