A4 1.8t quattro sport

[blonski_20vturb]

Hi Guys, I am just after a little bit of help about the turbo. SO..... I have a Audi A4 1.8t Quattro sport, It is a full S4 rep including exhaust. It also has a K04-015 turbo fitted which i am lead to believe that it is the turbo that comes off of the 210bhp passat. The turbo is worn and whistles very badly so I am currently looking for a new one however I would like to upgrade the turbo to a K04-023. As I am aware though the K04-023 turbo which is used on the Bam engines is only for normal transverse engines where as I have a longitudenal engine. So my question is, will the K04-023 fit my engine?

If not, what upgraded turbos am I looking for?

I also understand I need oil feed lines, manifold, exhaust cat altering to suite the turbo and intake pipe.

Any help is appreciated. Thanks