What exactly is the end goal you want for your car? Before you go wasting money on things that really don't work very well you outto figure out what general area you want to be when your project is done with all of the major mods. Do you want a drag car, street car, track car, all around everything car, is it a Dailly driver or just a weekend getaway car. It's things like these that are going to determone what the best course of action for completeing your ride is. Look at you and your ride down the road a bit and then you will see a path that will take you there. Don't fall for gimmics listen to the boards these guys are beyond knowlegable and know what works and what doesn't because they have seen it work or seen that it doesn't work. Bottom line is when you look at what you want you mustang to do when its almost done, let the guys on this board know what you want to do and we will be more than glad to give you a thousand opinions on what we feel works the best for you with a little bit of special olypics grade aurguing in between. Dont be shy about asking or using the search button. One last thing off topic a bit i see your screen name is usarmyaviation what bird do you work with? I'm a OH-58D (R) Kiowwa guy and its always good to see more army guys running around.