Yes, my 2013 R3T had emissions on it. If I put just a tiny too much fuel in it and it overflowed into the canister it would barely run as it tried to put the fuel back into the throttle bodies. It would sometimes happen if I fueled in the AM and then the bike sat at work all day and the fuel heated up, overflowing into the canister. It would spit, sputter, and take an huge amount of throttle (relatively speaking) to keep running.
Well, I finally had enough when I fueled up on a trip and as soon as I pulled out of the gas station it tried to die in front of traffic, not real good.
It was pretty straight forward, trace the hoses, pop them off of the throttle bodies and put
5/32" rubber caps on the tits. Run a new overflow line from the roll over valve to dump onto mother earth and you are done. I wasn't sure what size was going to work so I picked up a boxed assortment at AutoZone. Now I have 26 larger caps they can sell at my estate sale in 30 years or so.
This is what was removed. I wish I had done it sooner. If you want it let me know.
While I was there I inspected the RamAir and it has no issues with cracking or other failures. It has been on for a couple of years now. Clamps are snug and I also have it held on with zip ties, which may be overkill because it sits down on the throttle bodies like it belongs there.
bob