In the past I converted a MP-6 to brushless- it ran good with a 10L, but would have run better with a XL. I'd like to convert a 1/8 on road, but I have to many project cars as it is. ( not to mention cost) Yes, it's a AFI 15 with a 4T arm. I built the whole car. The front end is a modified AE RC300 ( cut to hold springs). The rear end is Mcallister. It runs pretty good. Don