YOu must realize how often this exact question is posed ... I suggest you use the "SEARCH" feature. This site is a great resource, not only for finding out the information you're searching, but also to find other related sites that might be of interest.
All my mods I have done in my driveway/garage with some pretty simple tools. Cold Air Intake was probablythe easiest to do. I bought a bolt up exahust kit from MAC. And the UD pulley only required me to rent a torque wrench and dampner puller for free from AutoZone.
Somewere like around 4 times in the last 2 weeks. I made a (generic sticky) for the newbies and the people that have bad memories, I made big top 10 mod definition table. I understand if someone doesn't quite get something and askes a question or two but to have the same 5 or 6 topics keep poping up is a little much, but it'll always be like this. There will always be newbies, and questions, so we'll have to deal with it for the most part I guess. But that doesn't mean it's not annoying. I really think that the mods should put up a few stickys on these and other subjects. How to's, top 10 beginner mod choices, best stang web-sites, proper engine break-in, a brief technicall over view of the 3.8L engine, etc.