I have one on mine, I think they are a good idea, atleast you know for sure you are ok. the mcx is set up plenty rich from what I have seen 11.5 to 12,s while on the boost, except a lean spot just as the boost comes on, but from what I have heard alot of guys are just putting boost gauge on and riding hard, now that I know everything is working I don,t even look at it, but its good piece of mind knowing I am ok.
