GFB T9133 Mach 2 TMS Diverter Valve with Atmospheric Vent Option

The GFB Mach 2 Diverter Valve with TMS Technology and Atmospheric Venting Option (T9133) is a turbocharger blow off valve, also called a diverter valve or bypass valve, designed to replace the factory bypass valve. Using GFB's TMS technology, the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears.

Key Features:

• TMS technology: helps deliver maximum throttle response and faster return to peak boost between gear changes
• Bolt-on design: the Mach 2 is available in bolt-on kits for most popular turbo models, with no additional adaptors, parts or vehicle modifications required. Simply remove the factory bypass valve and replace it with the Mach 2
• Recirculating or atmosphere venting: the Mach 2 is configured as a 100% recirculating valve (bypass, plumb back), and conversion kits are available to change it to 100% atmosphere venting
• High boost capability: it can effectively hold unlimited boost, in that no turbo could produce enough pressure to damage it
• Vents without stalling: with the atmospheric conversion, you can vent to atmosphere without stalling your engine

Factory bypass valves are typically designed to start opening above a certain pressure to protect the engine, and they are not optimized for throttle response. They also cannot be vented to atmosphere without stalling the engine. The Mach 2 addresses these shortcomings. Use the recirculating setup for a direct factory-style replacement with performance and without the noise, or add the atmospheric vent option when you want some noise with your performance.