DDM Works makes a bolt in replacement for the stock BPV.
They also sell a charge tube that can be purchased with a synapse BOV or they can weld a flange for pretty much any other BOV of your choosing (like an HKSS). The latter option you buy the BOV seperately, for both you need to plumb in a vacuum line to the new BOV.
Browse thru DDMs web page or section on the forum for more info and pricing.
If you're still looking for an atmospheric BOV, I'd be willing to trade for your stock one.
If you're still looking for an atmospheric BOV, I'd be willing to trade for your stock one.