Spoke with APS in the summer and they said the majority of R8/RS4's aern't making 414 bhp and a more like 390'ish.
Ed stated that normally a full Miltek, map etc sorts them out and brings them up to factory figures!
R8 is still a lovely car though but it's a nice thought that the hiumble old Golf with a bit of fettling can bring it's performance to levels that years ago was only a dream. All credit to the overall Golf package on what is a fraction of the cost of a R8/RS4/911 even with all of 'our' stage 2 mods.
Ian