[jimmyv-21]

what do you mean "if you change one thing itll affect another and if you dont change that required thing then...well its ghonna result in negativity not something positve." dont mean to sound stupid but if the pcm regulates all that then the programmer should know how to make the proper adjustments. the programmers i have looked at have several different settings for how you want to drive the car. also, with the pcm, you have to get everything calibrated and that can only be done at gm. plus if you want to turn the pcm back to stock, you cant. whereas with the programmer, you can set it for ultimate gas mileage, or best horsepower and torqu, or something in between. and you can always turn it back to stock. i dont mean to sound like a programmer salesman, it just seems to me that it is the best choice hands down. am i missing something obvious??? i guess i really need to talk to someone who knows bout this stuff.............