Fitment: Fits ALL Following Models: 02-2007 Subaru Impreza WRX & 2004-2019+ Impreza Sti ModelsNote : Only Works with HKS SSQV Blow Off Valve Features: Made of Light Weight & Billet Aluminum Material CNC Machined Aluminum Flange Adapter Direct fit to All SSQV Blow off valve Makes Your BOV Installation Easy and Effective Holds up to 30 Psi