Nitrocannon I am not sure about actual HP figures, but I know that it is higher than stock. The run time is less than a stock motor, but they can still make 6 minutes. The 5 port MT12 is more powerfull than the S3 but it is not ROAR legal. I charge $260.00 for the modified S3's, (because they cost me more) which I should have more of soon.