HRC power kit performance?

[steveatv3]

I was wondering what the differents in horsepower was from a stock 450R and one with an HRC kit in it.

Mine only has the HRC cam, airbox lid, but has a 12:1 wiseco piston. I have never ridden one that was stock just wondering how different it would be in a drag race or at the mx track

[beak7707]

I dont know any numbers, but believe me the HRC 450 will whip a stocker. The HRC kit really wakes up the 450R.