well i think most peple are saying tot get the titans because they are very good reliable engines. If you fry one of those you have got to be doing something really wrong. Putting on engines with more torque might alow you to put a bigger prop. This might give a speed difference(not sure on that). Brushless would work but useing one engine will put more weight on one side of the boat causing it to lean. And deffinately do not use the stock electronics with a brushless. Well thats my opinion. Hope this helps.