HKS Super SQV4 Blow Off Valve w/ Suction Return Kit - 2008-2021 Subaru STI

HKS SuperSQV4 Blow Off Valve Subaru STI 2008-2021

RallySport Direct proudly carries performance upgrades by one of the biggest names in the performance industry, HKS. Since 1973, HKS has been a leading innovator in turbocharger technology, and many of their products have been utilized on world-class race cars of all makes and genres. Today, HKS continues to engineer high-performance engine components to improve the power and the performance of your vehicle. 

Here, you are looking at the HKS SQ4 Sequential BOV with the Suction Return Kit. 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 recirculation connectors
• Includes factory-like flange to bolt onto the intercooler
• Includes a pair of polished blow-off valve pipes
• Includes the HKS Suction Return Hose Kit to allow installation as a recirculation valve