I have just bought the DNA Stage 1 & 2 filters. Do I have to get some kind of fuelling adjuster? I have 2 XT's, a 2006 XTX and a 2007 XTR (with the dreaded CO thingy) so do I need to decide which one is going to receive the filters or is there ONE fuelling adjuster that works on both bikes?

Sorry if this is basic stuff, I am still learning about the XT.