currently contemplating purchasing the 2.80 dail your boost pulley from south florida. they say you have to change your sparkplugs and reprogram the ecu. my question is what do i use to do so. also what would happen if i ran the 2.80 pulley without a tune? and any word on a power programmer coming out or something along those lines so i can return my cobalt to stock incase of warrenty work.