You can try to see if it fits on the firewall. I put in my own receiver (ar6100) and installed a brushed esc (25 amp) and use a 11.1v 1500mah 15c battery. I kept the existing motor and it flys awsome. The plane itself is a large step up from the cub due to the aeliron control ( but no rudder ). The speed is good and the control is good. I keep it on high rate.

Try is stock and if you feel the need for more speed then by all means GO CRAZY!!!!!!!!!![sm=bananahead.gif]