HKS 02-07 WRX/ 04-07 STi SSQV4 BOV Kit

This HKS SSQV4 Blow-Off Valve (BOV) kit comes with the Super Sequential Valve (SSQV) version 4, a mounting adapter, and necessary hardware for installation on your 2002-2007 Subaru WRX or 2004-2007 Subaru STi. The SSQV4 is a popular choice for turbocharged Subarus, designed to release excess boost pressure from the intake system when you lift off the throttle. This helps protect your turbocharger from damage and can improve throttle response.

The SSQV4 uses a unique dual-valve structure that offers both a pull-type relief and a push-type relief, which HKS claims helps prevent both boost leakage and compressor surge. It's made from durable aluminum and features a polished finish. The included adapter makes installation more straightforward, allowing it to bolt onto the factory mounting points without extensive modifications. This kit is well-built and a solid option for Subaru owners looking to upgrade their factory bypass valve.

Please note that this kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for specific details on mounting and setup.