95 with 2.5 inch stacked sonic turbos (short loud ones) with turndowns under the truck. I bought it that way, and they are a good / bad idea - I love the sound when moving. Sometimes in traffic though the resonation from the bed will make you want a bigger amplifier for the stereo.
3 chamber Flowmasters stacked with side exit should sound great, if you don't want it too loud you can probably put a crossover (H in the pipe) before them to mellow it out.
If your into letting everyone know when you get home, get the 2 chamber ones. Either way, it's probably going get that "Mustang" sound to it. I personally want the 3 chamber and out the side with baloney cuts on chrome tips. I can't get used to the idea of 1 muffler 2 in / outlets for some reason.