HKS Super SQV4 Black Edition Blow Off Valve 2002-2007 WRX / 2004-2007 STI / 2004-2008 Forester XT Walbro-InStock Choose between resonated or non-resonated

Choose between resonated or non-resonated versions to customize your exhaust note to your preference

this brace is as strong as it is stylish

stylish functionality

this hot pipe combines strength and style

HKS Super SQV4 Black Edition Blow Off Valve 2002-2007 WRX / 2004-2007 STI / 2004-2008 Forester XT Walbro-InStock Choose between resonated or non-resonatedIn 1994, HKS introduced the first Sequential Blow Off Valve featuring a unique, pull type, sequential valve structure and a differential pressure control system. This advanced pull type relief system allowed for stable operating ranges from low to high boost pressures. Since imitation is the highest form of flattery, HKS has once again redesigned the physical aspects of the Super Sequential Blow Off Valve to thwart the counterfeiters. The reliable