HKS SSQV4 Blow Off Valve Subaru WRX 2002-2007 / STI 2004-2007 | 71008-AF006 STI_2015-2021 Increasing the diameter of your

Increasing the diameter of your sway bars will have two main effects

4" Inch Quad titanium exhaust tips

The GrimmSpeed 3-Bolt Manifold to Up Pipe Gasket features durable multi-layer stainless steel construction and is 22% thicker than the OEM gasket to provide an optimal exhaust seal

This turbo can handle 420 HP for all your racing needs

HKS SSQV4 Blow Off Valve Subaru WRX 2002-2007 / STI 2004-2007 | 71008-AF006 STI_2015-2021 Increasing the diameter of yourFitment Information: 2002 2007 Subaru WRX 2004 2007 Subaru STI 2004 2007 Subaru Forester XT Features: Triple Fin design produces "Super Sound" Silver Finish High Quality Aluminum Die Cast Body Pull type sequential valve structure Stable operating ranges from low to high boost pressures Quickly relieves excess boost The HKS Super Sequential Blow Off Valve 4 (SSQV4) for the Subaru WRX and STI is unlike typical push type blow off valves, the pull type