This is a monster-ported TD04 stock turbo for WRX. It flows a LOT better, and handles higher boost better than a standard TD04. I did this one and now won't be able to put it on my car. I had done one a while back for a friend and he was blown away by the performance of it. I can give his contact info if anyone wants to verify what this thing is. It has been completely torn down, inspected, and then ported and polished. It was done from a TD04 that only had 1900 miles on it. Please feel free to email or PM me with any questions. Asking $400 plus your good stock turbo.
This is a side by side shot I took of the turbo with his old stock one:

And here is one just by the ported one by itself:

 

how much with core charge I need my stock turbo

 

PM'd ya