Go Fast Bits - gfbT9100 - Mach 2 TMS Recirculating Diverter Valve for Subaru

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE!, GFB's Mach 2 utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100psi+. Put simply, it can hold more boost than any turbo could produce GFB's Mach 2 diverter valve is configured from the factory for full recirculation (i.e. plumb back, diverter, bypass) venting for the performance-minded who just want the benefits without the sound. Atmosphere venting kits also available. Subaru WRX/STi MY99-00, B4 Legacy, GT/XT Forester MY98-04

The Go Fast Bits Mach 2 TMS Recirculating Diverter Valve, part number gfbT9100, is designed to support rapid boost recovery during gearshifts and optimize throttle response. It uses GFB's proven TMS Technology and is engineered to withstand boost pressures exceeding 100 psi, providing substantial boost-holding capability for performance applications.

Configured from the factory for full recirculation, also known as plumb-back, diverter, or bypass venting, the Mach 2 delivers the performance benefits of an upgraded diverter valve without the associated vent-to-atmosphere sound. Atmosphere venting kits are also available. This valve fits select 1999-2000 Subaru Impreza and Legacy applications, along with 1998-2004 GT/XT Forester applications. Verify vehicle application before purchase.

Key Features & Performance Benefits

• Rapid boost recovery: Helps restore boost quickly during gearshifts.
• Optimized throttle response: TMS Technology supports responsive turbocharger operation.
• High boost capacity: Designed to withstand boost pressures exceeding 100 psi.
• Quiet recirculating configuration: Factory full-recirculation setup provides performance benefits without vent-to-atmosphere sound.

Key Product Specifications & Technical Data

• Brand: Go Fast Bits
• Part number: gfbT9100
• Product: Mach 2 TMS recirculating diverter valve
• Valve configuration: Full recirculation
• Technology: TMS Technology
• Boost pressure capability: 100 psi+
• Application type: Automotive
• CARB status: Not CARB approved

What's Included

The product data identifies one Mach 2 TMS Recirculating Diverter Valve per listed unit. No additional included components are specified.

Fitment

Applications listed include 1999-2000 Subaru Impreza, 1999-2000 Subaru Legacy, Subaru B4 Legacy, and 1998-2004 Subaru GT/XT Forester. Confirm exact vehicle fitment before installation.

Fitments:
1998 Subaru Legacy Brighton
1998 Subaru Legacy GT
1998 Subaru Legacy GT Limited
1998 Subaru Legacy L
1998 Subaru Legacy Outback
1998 Subaru Legacy Postal
1999 Subaru Impreza L
1999 Subaru Impreza Outback
1999 Subaru Impreza RS
1999 Subaru Legacy Brighton
1999 Subaru Legacy GT
1999 Subaru Legacy L
1999 Subaru Legacy L 30th Anniversary
1999 Subaru Legacy Limited 30th Anniversary
1999 Subaru Legacy Outback
1999 Subaru Legacy Outback Limited
1999 Subaru Legacy SUS 30th Anniversary
2000 Subaru Impreza L
2000 Subaru Impreza Outback
2000 Subaru Impreza RS
2000 Subaru Legacy Brighton
2000 Subaru Legacy GT
2000 Subaru Legacy GT Limited
2000 Subaru Legacy L
2001 Subaru Legacy GT
2001 Subaru Legacy GT Limited
2001 Subaru Legacy L
2002 Subaru Legacy GT
2002 Subaru Legacy GT Limited
2002 Subaru Legacy L
2004 Subaru Forester XT
2005 Subaru Forester XT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1