That's interesting RichS as bahnstormers Alton told me akrapovic do not do a full system when I asked as I was very disappointed in their dustbin sized slip on end can. Could you please advise as to how I can get hold of one and at what price. cheers.
The parts are all over eBay bud, possibly not in the entire package but definitely headers and then end can.
Just search s1000xr exhaust.
You can get headers from akrapovic and arrow, both in stainless steel will be the cheapest and the arrow headers being cheapest still.
You can then just buy end cans.
Unfortunately the akrapovic end can will still be the same size as the one you don't like as that's the only end can available from them specific to the XR, that said there's a range of ways you can get a full system to work with alternative end cans but it's likely you'll need a new link pipe (headers to end can) making up.
So, buy headers (arrow cheapest I think).......decide whether you want high or low style mount, then buy an end can you like (remember you may want a hanger)......then take it to an exhuast fabricator and ask them to make a link pipe to connect the headers with the end can.
It'll just take a bit of thought.
I'm considering doing the same but I'm just waiting for information on a new exhaust which I'm assured is being launched Monday / Tuesday (Sc project)