Since he is talking about me I guess will say that I also had a Fidanza 7lb Flywheel and the guy who was tuning my car said I would be sitting right next to 190fwhp with a flywheel, so the flywheel was added after the tuning. I also had an AEM fuel rail and a FPR set at 5psi more then stock for the cams. And it was a CAI not SRI.

Qtiger, why would I have gained 10 hp with a different header?

Do you mean if I had a 4-1 header?