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GFB's Mach 2 TMS recirculating diverter valve for Subaru 2001–2007 WRX, 2002+ STi and 2005–2008 XT Forester delivers faster boost recovery and sharper throttle response while remaining configured for full recirculation to avoid atmospheric noise. It's a direct-fit upgrade for the specified Subaru models and supports additional hose and flange adaptors for custom fitment needs.
GFB Mach 2 TMS Recirculating Diverter Valve - Subaru 01-07 WRX / 02+ STi / 05-08 XT Forester
