I would suggest looking at one of the hobbywing v3.1 escs. They are very smooth and have strong braking. Plus their motors are pretty good too. I would look at an 7.5 to 8.5 motor for mod. If you are on a really tight budget you could also snap of one of the older v2.1 esc for around 80 to 90 dollars. They are very good and are 120 amps escs too. They can even be updated to have boost and turbo timing advance if needed.