K04 Is not worth the money to power ratio, save for a 71r or a 60rs
Not to mention, the torque spikes on those things might bend rods.
If you want nice power, without touching the internals, go for the franken turbo, its a k04 on steroids.
I think unitronics made a file that put out 260 awhp on a B6.
you have more chances of bending rods with a ko4 then a gt28 so..i hope you dont bend a rod also