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The GFB Mach 2 TMS recirculating diverter valve for Subaru 99–00 WRX/STi, B4 Legacy and 98–04 GT/XT Forester uses proven TMS technology to speed boost recovery and improve throttle response while resisting very high boost pressures. Configured for full recirculation from the factory, it offers bolt-on fitment for popular models and can be adapted for custom installations with available hose and flange adapters.
GFB Mach 2 TMS Recirculating Diverter Valve - Subaru 99-00 WRX/STi/B4 Legacy / 98-04 GT/XT Forester
