Those gains are through a Manual Transmission though, im sure, i'd say 10-15 HP and torque at best through an Auto. The main difference your feeling is the shifting and revving higher before shifting, i cant tell a difference between econo tune and performance tune, but i get better mileage on performance tune, so thats my reason for running it.
I wouldnt expect any low end gain from a programmer, and if your expecting a lot of power then you shouldnt be buying it all, these are impressive for what they are but the dont work wonders like a cam and a stall and gears would do
well first you have to buy the overpriced cams to begin with, im not sure what a good mechanic would charge, i would check your local dealer, if it were me i would do them myself, cam swaps are very easy, anyone can do them, especially overhead cams, its one of the simplest things you can do to the internals of a motor.
Very true, but one thing to remember when you have done ported heads cams, intake, headers, exhaust etc. You shouldn't be worrying about a little thing like budget because your pcm flash will be 100 bucks more then a programmer