RS4 engine into a S4, will it fit?

[w17led]

I currently have a s4 on 2003, and a friend of mine has a rs4 engine with ecu.

I have been told the enigne will go straight in and also the ecu, all i would have to do is a immobiliser delete?

Is this correct?

Any help would be appreciated

Thanks

[grizz]

Don't think it's gooing to be that easy as the rs4 engine is a FSI...