I'm still new here, but I looked and can't seem to find a single place that lists most of the mods that can be done, and what they will actually do for the car and its performance.
I'm trying to learn, so if anyone can add to this, I would appreciate it.
cold air intake: it does so and so. only useful if you have such and such mod.catback: does so and so.
sway bars: good for so and sostabalizer bars: will result in so and so. do this first or second after such and such mod.
I think that would be a great sticky, especially for newbies like me. The amount of different mods seems a bit over whelming.