K04 on an A3 20vt...ebay?

avoid.

dodgy chinese copy turbo by the looks of it.

seriously, a new turbo for that money? I'd stay well clear. plus it'll need LOADS of other stuff to make it stand any chance of working.....
 
Agreed, avoid, they come from China and are made (possibly) from remoulded doggie doo mixed with sawdust and bits of rat.

In all seriousness, someone I know bought one, and worked fine. Briefly.
 
if your interrested i have a compleat ko4 kit from a 2001 tt (ex manifold /turbo /injectors /down pipe &cats & most of the pipework ) pm me for price.