Red05V6stang,
I agree with the advice specified above, i.e. SCT Xcal2 and/or Nitrous. The nitrous may be a bit over $600 ... but well worth it from what I've read.
What I like about nitrous is that you can keep the engine basically "stock" for daily driving, thus enjoying the gas mileage and reliability of a stock setup. But ... get a HUGE blast of extra power when you need/want it. Seriously, how often do most people do full-throttle runs on a dat-2-day basis. I don't think officer-Mc-friendly will allow this.
The only question I have regarding nitrous is; if you are able to configure it as an "always-available" setup. I would like to have the juice installed in an instantly(always)-available setup. Thus, if I'm at a light and some heavily modded tuner car pulls up beside me, engine farting full tilt, I can just press the button and waste him but good. I don't want to have to go through a bunch of "getting-ready" operations before the sauce is available. Is this possible? (Screaming?....)
Finally, if you are at all concerned about the cars handling, I highly recommend installing the GT F/R swaybars (if you don't already have the pony package). The 34mm front can be had as a takeoff from saleen for just $34, postage included. The rear bar will be significantly more since you will need the associated links, bushings, hardware, etc. My Progress Tech setup was $270 and *well* worth it IM(LTH)O. Front & Rear were around $300 and the difference is very noticeable. I installed them by myself, using car ramps, in about 2.5 hours, no special tools required. They make a huge (+) difference in the agility. The car turns tighter, faster and more level. I *highly* recommend this mod for handling.
Good driving stang-brother!
