Blockoff flange (plug) for stock diverter valve. Allows the removal of the compressor mounted factory diverter valve on stock C30 Turbos and allows the port to be plugged and sealed off. You can then mount a new, higher volume/higher pressure BOV elsewhere in the chargpipe system. Nice CNC machined from billet 6061 aircraft aluminum. This flange will also work on the Volvo S40 T5 and Ford Focus ST225.
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