Went over to the MRC workshop last Satuarday to have my brothers RS6 checked over, these guys know there Audi's thats for sure.

Had a few impressive engine builds underway, and I was well impressed with the the figures that can be achieved on stock internals.

The filter and exhuast plus remap upgrade to 500+ comes in at £3k ish, not cheap but cheaper then rebuilding a cossy.