Well first of all your going to have to have them pop-tested and flow matched once you change the nozzles or they will drip and you will have a rough idle, I found this out the hard way. I sent my injectors in to a fuel injection shop and they flow matched them for 25 dollars a piece. Now Ive heard anywhere between 20 and 25 dollars is fair price. Im thinking that since they have to take the nozzles off any way that it wont cost you anymore if you just send in the new nozzles with the injectors and let them switch them out. I could be wrong though, best thing to do is find a shop near you that does pop testing and ask them about it. Hope you have better luck than I did.
Clayton