I currently have a '97 1.8t sport A4. As it is the first phase of this engine, so i am told, it will only make 180bhp after chipping, an increase of 30bhp. What i considerd doing was changing to a K04 turbo setup. Can anyone tell me since my car is NON-Drive by wire. would this create any issues? Is the K04 a direct replacment job. or does it need different pipe work or engine management, injectors or anything else? I know that the car will need re-mapped if i was to run the K04. What kind of power should i see running a K04 and having the car mapped to it? I have also herd people speaking of a K03s turbos, would this be a direct replacement and what is the difference between it and a standard K03?