The 2.5 is a good upgrade and you can probably find a good used one for dirt cheap. That's what's in mine and it rips pretty good- upgrading the stock clutch to the torque control clutch is also a great investment that helps put more positive power to the ground instead of wasting it with having to spool the clutch up.
Last edited by Xpress; 09-14-2017 at 10:32 AM.