Well to be honest I couldn't tell you an exact number.. back when it had the c4 transmission it put down right at 500rwhp/440rwtq car ran 10.8 on foot brake and 3.31 gears with that transmission. I haven't had the car to the track or the dyno since the t-56 install, I'd guess the power to be between 585-615rwhp now that the power stealing c4 is out. That and comparing it to cobras with similar mods I'd be very surprised if it put down less than 585rwhp, sorry for not having any set in stone numbers, I have to travel 3.5 hours to get to a decent dyno..