Yeah, but many had issues with breaking wires at the grips on the stock version. Some suggested it was just a fitting issue but if not set up correct a few had their wires break on one side other.
HEATED GRIP KIT A9638027 from 2008 version, later ABS versions may have slightly different electrical connectors.
Triumph did. I have them on Fiona, my '14 R3T. Some folks (including myself) had issues with the quality of the throttle hand-grip failing. For me, it turns out FULL throttle will do that. I did absolute full throttle twice and replaced the hand-grip each time. Those were my bike limitations checks out in the middle of nowhere; so I don't do that anymore. I've never used Oxfords, but many folks highly recommend them.
-MIG
Liking the Oxford grips on my Roadster. The throttle tube that came with it binded on the Roaster setup though. I ended up having to strip the Triumph heated grip off the the inner throttle tube and use that with the Oxford grip.
Just FYI