GFB T9103 To Fit Subaru Impreza WRX 2001 - 2007 Recirculating Diverter Valve Convertible Component Coaxial The most significant being they

The most significant being they are only designed to have pressure applied to one side

You may need to shorten your alloy wheel bolts as the adaptor is only 15mm thick and many wheel bolts will be longer than this when pushed through the wheel

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GFB T9103 To Fit Subaru Impreza WRX 2001 - 2007 Recirculating Diverter Valve Convertible Component Coaxial The most significant being theyBrand New NEW MACH 2: ENTRY LEVEL TMS THE SIMPLE & ESSENTIAL MOD FOR 30% QUICKER BOOST Utilising Proven Tms Technology To Ensure Dependable Boost Holding And Optimum Throttle Response If you dont need the patented venting bias adjustment feature of the Respons or Deceptor Pro, the Mach 2 is the answer. Using GFBs TMS technology the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more