I have two CX2's. The first one is almost completely stock, with the exception of a heat sink and unbreakable skids. She flies great - very stable - but is way different than my modded CX2. The latter Heli has"

CF Tail boom
Unbreakable skids
X180 motors
Heat sink
E-Flite aluminum uppers, lowers and swash
Ventilated canopy

Hopefully I will receive my next upgrade in the mail today, which is the shortened flybar with LED light paddles!

If I don't sell the first CX2 soon, I think that I might go with the Xtreme core kit on that one, along with X180 motors.