Availability
Go Fast Bits Mach 2 TMS Recirculating Diverter Valves
2 Customer Reviews
Factory bypass valves have two main shortcomings: they're typically designed to start opening above a certain pressure to protect the engine, and they're not optimized for throttle response. And you can't vent them to atmosphere without stalling your engine. The Mach 2 solves all of these issues. It can effectively hold unlimited boost (unlimited in that no turbo could ever produce enough pressure to damage it), and the TMS technology ensures maximum throttle response. And you CAN vent with the atmo conversion to atmosphere without stalling your engine.
Product notes:
* Recirculation model for direct factory replacement for performance without the noise
* Atmosphere venting kits to convert the recirculating valve if you want noise with your performance
* Like the Respons and Deceptor Pro II, the Mach 2 is available in a range of bolt-on kits for most popular turbo models
* No additional adaptors, parts or vehicle modifications are required—simply remove the factory bypass valve and replace it with the Mach 2; it's that simple!
Showing In Stock Items. Show All 2 Items.
Recirculating Diverter ValveWRX/STi MY99-00, B4 Legacy, GT/XT Forester MY98-04
Part Number: GFS-T9100
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Turbocharger Diverter Valve, Mach 2 TMS, Billet Aluminum, Black Anodized, Volkswagen, Audi, Saab, Each
Part Number: GFS-T9125
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
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