In a fuel cell system for use in a vehicle and a method controlling the system, the system includes a fuel cell, a first flow control valve controlling the flow rate of oxygen containing gas to be supplied to the fuel cell, and a second flow control valve controlling the flow rate of hydrogen containing gas to be supplied to the fuel cell. The first configurable IC implements a second IC design that is specified for a second IC that is to operate a particular design rate. Further, there is an inlet flow surface formed along the axially upstream surface, wherein a fluid is able to flow both radially and axially through the filter element. The seat assemblies are engageable with the attachment mechanisms. The incision is allowed or caused to close.