Cheap ESC for a 4s lipo

I just went mamba max on 4s in my 9 pound violator 9.5 buggy and it's working great outstanding in fact...I was very suprised how cool it ran with a 25mm fan screwed to the top of it, you will also need an external bec, I recommend staying away from the castle bec and getting a nice trusty unit from dimension or a hercules.