I'm thinking of changing my Blitz dump valve back to a recirc d/v.... any ideas who make the best ones?? or is a standard subaru one ok??

 

Std is fine.

 

std probably.
Is this a Blitz VTA? Is this for a MY99? How much do you want?

 

if you are pushing (or planning) big bhp (350+) best use a forge or similiar. if not o.e is fine

 

standard subaru item is fine, forge is fine as well and also athestically pleasing to the eye, it comes down to personal preference though. It is definately a good idea getting rid of the vta type though in my own personal experience.