I would have to suggest a Speed Passion GT 2.0 LPF, since you would only be running a 10.5 of 13.5 you don't need the PRO. The LPF has a 5.5 motor limit on 2 cell lipo, the PRO I believe hase a 3.5 on a 2 cell. The GT is super adjustable with the stock software, but can be made crazy fast with the supercharger software. I run 2 LPFs both with the 422 supercharger software one with a 10.5 and one with a 13.5, they run great and speedos never break 100*F with the fan running on almost 100*F days. Without the fan they get to about 130*F. I personally don't think the speed passion can be beat.