Okay so I have already done my cold air intake, Diablo tuner, deleted mufflers, and the guy before me changed the rear gears out and put in short throw shifter and carbon fiber drive shaft. Now I am gonna add headers and the rest of the exhaust all the way back and delete the cats and put the Boss 302 intake on and give it a custome tune. So my question is according to the techs I should be looking at close to 550hp with everything I am doing and with what I already have. Does this sound about right?