Depends on prop and set up. Expect around 100lbs+ of static thrust. They will hover/torque roll a 40% plane at abut half throttle. Basically, you only ever use full throttle on uplines and some 3D stuff. If you fly full throttle straight and level, you will rip the prop - sounds really cool, but is now frowned upon.

I agree with Bean - I like the sound of the short mufflers and 2 bladed props, but since I also like to compete in IMAC, I have to quiet it down.

If you are looking for the most power, go with tuned cans and a good 2 blade prop like a MSC 32X10.