Where can I find a 58mm TB Nitrous Plate?

Right now I have a 52mm Nitrous works TB plate, well ive been trying to bore it out but im not getting anywhere so Id rather just buy a 58mm plate...

Ive checked on barry grants website and cant tell what they are selling, and tech is closed. Does anyone know where I can find one at?

Or should I just go with a nozzle system? Not sure which is better...

NOS sells one, but it ain't cheap, around $260 bucks, try to find one on ebay or the classifieds, they pop up every once in a while for half the price of new.

TNT's is 58mm ;)

I used to run nitrous works, the plate they give you is garbage, doesn't atomize real well. I ended up switching to a single fogger after doing research, people picked up .2-.3 tenths by just swapping over to a fogger.

Im personaly not a fan of the plates behind the throttle body.Expecialy not nozzles behind the throttle body.
The problem is that the front runners are two close.I feel that it will not have time to attomize properly into the air stream.
Dave