Every car is different but you don't necessarily need that stuff to run a smaller pulley. I don't care what anyone says on here its bull****, but the vendors love people telling others that. In the end it just means more money for them. I suggest you use the HP tuners scan and go from there. However, if you are looking at going cam then you would be dumb not to do the items you mentioned anyways.
Nitrous is seriously probably one of the best mods to do to this car. But many are afraid to use it because of the horror stories from others stupidity. The ones that do use it correctly have some serious gains and propels their car well past what they expected.
