The HKS SSQV is one of the best blowoff valves ever created and one of the longest standing at that. CP-E has created a flange that is designed to interface with the HKS valve and bolt directly onto your Mazdaspeed 3 or 6. CNC machined from billet aluminum for strength and an awesome, clean look in your engine bay. In addition, they have created a recirculation hose unlike any other with unbelievable strength for how flexible the hosing is. This IS the nicest recirculation hose money can possibly buy. This is the FLANGE and RECIRC HOSE ONLY but is also available without the recirculation hose or in a full kit with the blowoff valve.