Cheers Capt Moto,
Im unfortunately without my bike at the moment, its still in the garage having the insurance repairs done, but when im back on the road i might have to take you up on that.
I contacted hein gericke though, where i got the akra's from and apparently they sell a re-sleeve kit for about �160, but the UK akrapovic importers are closed untill september so the carbon cans are looking like a possibility.

Cheers Mate