@HardRacing - Akrapovic's importer in the UK and they told me they wouldn't be able to get a full system for 3 months, but they had the slip-on in stock... As they are the only importer in the UK, I asked them if they had supplied the system to anyone that may still have one in stock, and they said no, people order from them using JIT so if they don't have one, you can't get one.
@Bucs Anthem - thanks for that link, interesting reading.
@v-tec crx - if what you say is true, and all the effort and expense really is for very little gain, then it seems its just not worth doing..
I'll try and find some reading on the chain mod you talk about to see what difference it makes, I don't really want to lose anything off the top becuase my BF has an R1 and I have a hard time keeping up with him at the best of times.
All I know is I just retired the bike on the right, for the bike on the left:-
and although my old one doesn't go round corners as well as the new one does, my old one (which has been dyno'd) is faster off the mark and in a straight line, I just can't keep up with it on my new one at all until we get in to some bends, which is a bit dissapointing after just spending £10k on a new bike and doubling my insurance premium... I was really expecting the new one to be faster than it is...