Hey Daniel...welcome. As you may or may not be aware, there has been a whole slew of mods through the years. This cult has been going on since the early 90's. There are literally thousands of threads on this site and the "undash". Before both forums there was se-r.net.
Site Index It was one of the first sites SR's guys used to document our cars. Unfortunately, some of the vendors no longer participate, so some of the parts you may read about are no longer available. It's still a good place to start just the same. A lot of basic info which is a good foundation. Also for suspension/handling we have Shawn's B sticky in the Suspension Section. The search button is also a great way to find things out on here. Like I said, ton of info over the years. Enjoy.