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The GFB Mach 2 TMS recirculating diverter valve for Subaru 2015+ WRX and Forester improves throttle response and boosts recovery on gear changes while remaining configured for quiet recirculation. Built to handle high boost pressures, it offers a direct-fit upgrade for the specified models and can be paired with optional adaptors for custom plumbing or non-standard installations.
GFB Mach 2 TMS Recirculating Diverter Valve - Subaru 2015+ WRX/Forester
