2018 M8 upgrade from 16

Really depends on riding style and personal preference.
For me, its 100% 2018, even if it cost $4k more than a new 2017...

Mountain Cat

After having my 18 with the exact same mods as my girlfriends 16, I really don't enjoy when I have to ride hers now. She feels the same way.

A buddy of mine has a 18 162 mid season. Hands down better than his 16 limited 162.

I have a 2014 that had all of the 2016 upgrades applied as well as Elka Stage 5 shocks, Powder Pro skis, running boards, clutching and C3 belt drive. Also have a 2018 MC that has upgraded running boards and no other mods. I was out today with a buddy who was riding the 2014, I was on the 2018, we swapped around a few times. 2018 and 2014 definitely felt like they were related, but If the 2014 was a 6, the 2018 was a 9, still could be improved, but absolutely noticeable how much better is was. My buddy said it just felt lighter and more responsive. Just easier to hold a sidehill, Motor is way more responsive low down and the clutch’s are good enough stock that you could just leave them alone and not have to mess with anything.