I don't know about the 540 motor. You could always run a slower cheap stock motor if you want to just run slow for a while. Durability, It's got it's week points, front suspension for instance. But put the RPM bumper on it along with the Trinity foam, and you're set. Loudness. Untill the diff gears break in, it's a little louder than most belt drives, but once they break in, it's just as quiet.