Go Fast Bits Mach 2 TMS Recirculating Diverter Valve for Subaru WRX 2002-2007 / STI 2004-2014 / Forester XT 2006-2008

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  • Recirculation model for direct factory replacement for performance without the noise
  • Atmosphere venting kits available to convert the recirculating valve if you want noise with your performance
  • Direct bolt-on installation
  • Effectively holds unlimited boost
  • Ensures maximum throttle response
  • Includes Allen tool