Go Fast Bits Mach 2 TMS Recirculating Diverter Valve Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 WRX_2002-2007 Interchangeable black/white faceplates

Interchangeable black/white faceplates

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Go Fast Bits Mach 2 TMS Recirculating Diverter Valve Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 WRX_2002-2007 Interchangeable black/white faceplatesThe Mach 2 is configured as a 100% recirculating valve (i. e. bypass, plumb back) and add on kits are also available to convert to 100% atmosphere venting. Use the recirc model for direct factory replacement when you want the performance WITHOUT the noise! Add the conversion kit when you want some noise with your performance! Part #: T9103 Factory bypass valves have two main shortcomings one is that they are typically designed to start opening above a