the owner of the hobby shop is the one who told me it was the e spec motor when i was getting the kit. I was torn between the different kit options and this was the best buy. I picked up the tr from a friend here in the military who decided he was sticking with off-road buggies for some kanai parts. had about a half gallon on it. ran it on my 05 a couple times and put it back in the box for a back up