So, my Stang was in the dealership a little while ago and they told me they wanted to do a fuel injector service next time they saw the car. It has around 73K on the clock, and I'm not sure if that's worth it. I'm just not very savvy when it comes to the fuel system on the car, so I don't know what to believe. I'll touch anything else pretty much, but don't know much about that system. Can I do it myself instead? What is included? Any help would be great! 