Ditch the MGM and get a Castle Hydro 240HV. You wont be able to go 14s but you can go 12s....which would be perfect for 425kv if you ask me. By the way, if you ever want to get rid of that 2217 let me know.
Jammin SCRT10 Neu 1512 1y
Losi Ten-T SCT conversion Neu 1512 1y