Couple more bits.....
I have a Turbosmart Kompact
BOV with flange to suit:
Suits Mazdaspeed (MPS) 3, 6, CX7, Subaru Legacy/Liberty GT, WRX MY08-current, Forester XT MY08-current.
Plumb back recirculating version - a nice upgrade over the standard plastic fantastic and is as simple as take old one off, bolyt this one on! No more than 6 months on the car, looks basically new.
$100
On behalf of PoktRokt - HKS SSQV. According to the literature, the current adapter is suited to an EVO 1 - 8 and 93 - 96 WRX Classic. The adapter is held in place with a circlip so can be changed to suit. I'm pretty sure in its current guise it is vented to atmosphere, but you can get a kit to make it recirculating if you wish. Comes with instructions, 2 plastic t-pieces, hose and 3 small zip ties.
$100