The porting is nice if I lived closer to them and could drop the car off I would consider it. It would be hard for Ford to realize you did it if a warranty issue came up. I took my car to the dealer to get it inspected and had the FRPP exhaust and a few mechanics came over to look at the car and one of them said I didn't know they put that exhaust on the car and the other one said yep they sure do so some porting would really sneak pass them.
And the 2.5 pulley they will spin faster but with more heat and not sure how long the life will be taken away with that. I will do the pulley change some day I am guessing next year but I am only going down 1 size. Hopefully I can get a tune from VMP after the pulley mod