I have noticed on this Z forum and the other 2 that people are always asking what modification to do next to get more power. When I first got my Z I added bolt on modifications with little or no results. So this is just a observation, but instead of going out and buying N/A mods that will yield little if any noticeable HP gains, why not just save the cash and go FI? I am not sure about the pricing but I think the Turbonetics single turbo is in the range of 4-5k, yeah you can nickle and dime...... CAI, Plenum, Plenum Spacer, headers etc etc but would you not see more HP gains from a single turbo than a bunch of bolt ons? Just a observation hope I did not offend anyone.