Metco 2007-2010 Shelby GT500 - Supercharged Mustang PCV Adapter This cleverly-engineered adapter is designed to replace the OEM PCV valve adapter found on the passenger side valve cover in the Cobra & GT500 applications. It installs as a direct replacement for the original part and even uses the same mounting fasteners. The adapter housing is CNC-machined from billet aluminum and contains a modified 2003/2004 Mustang Cobra PCV valve (included). The hex-headed insert threads into the housing and features 3/8" NPT thread to accept the AN fitting of your choice. This kit is designed for users building a custom PCV system to better manage crank case pressures in high boost applications. This kit may fit other Modular 4V applications using a similar PCV valve adapter, but fitment has not been confirmed on vehicles other than those listed above. Note 1: The above picture shows (3) kits from different angles for illustrative purposes. The kit includes one housing with O-ring, one PCV valve, and one threaded insert. Note 2: If your vehicle has a sensor connection or heater wire at the PCV valve, modification may be required to use this PCV adapter.