Ricky i got a set of these when i first got the R. Like you I wanted to fit carbon tubes. They are not cheap, If memory serves me right about £130 - 150.00. I went for then against the pipercross ones, because I didn't need to alter the fuel lines. I still had to remove the airbox to fit the filter carriers.
I had seen them in one of the bike mags. Try a search under BMC filters. And then look for a stockist. Mine was done through mail order.
BTW. thay are not meant for road use
