Go Fast Bits Mach 2 TMS Recirculating Diverter Valve Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 Steel Tubing (1) M5 Short arm hex

(1) M5 Short arm hex key

The Mishimoto water temperature sensor adapter allows you to place the water temperature sensor directly within the radiator hose

Part #: 654X-10

The Fidanza STI flywheel is SFI Certified

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve Subaru WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 Steel Tubing (1) M5 Short arm hexThe 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