i need to replace the turbos on my a6 2.7t and was thinking of upgrading to rs4 ones, can anyone tell me what else i will need to do to install these.
You will need intake pipes, outlet pipes.. I 'think' the Y pipe on the top of the engine is the same but would be worth checking.
You can use the standard intercoolers and throttle body inlet pipes although they might be a bit restrictive.
The catalysts are probably different.
And of course you would need a custom remap.
Speak to these guys www.mrctuning.com - they have done hundreds of k04 coversions.