espelirS2K

Power gains: Yes.

I don't know what you mean by droning.

I think you mean like that really low pitched noise when you first start out or are ideling, right? If that's it what you're talking about, then yes. it does have a little bit of droning. Also in the cockpit when you're really gunning it, something vibrates. I think it's either the rollbar plastic or the plastic window, but it's behind the seats. Don't know if it'll happen to you or not. Just a heads up.

PS, it's really f-ing loud. I wouldn't suggest getting a TP on top of the exhaust w/o the silencers on it. Which I'm thinking about buying for myself.