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