I'm trying to hold out for the Dynamic 8 combo...love my x-12 motors so much...I have 8.5 octa, 10.5, 13.5, 17.5, 21.5 and was planning on a 5.5T X12L...I really want to give the Dynamic 8 a try....
If you want to go with something else, I ran a Tekin 2000kv truggy motor in my e-maxx on 16.8v and it was phenoMENTAL! That was an amazing motor. Should be able to handle your muggy no problem.