I'm looking around on the net and trying to get a feel to some tasteful mods. Thats the stuff i'm more into, subtle things that make a car unique, but not crazy body kits. I'll admit I like some body kits, but I don't think thats for me. Anyway I really like the Aero body style of the newer eclipse, and I had a question about it... I noticed you can buy the Aero Kit separate for quite a bit cheaper, but if I did it myself would I be voiding my warranty?

I'm new to new(er) car buying, so I don't know much about car warranties. While we are on the topic, I would like to also ask the same question about putting in an LCD nav system. I've seen some very nicely done ones and would be interested in doing that. Would that void a warranty also?

If both of those things would, is there anything at ALL I can do to my car without throwing my warranty into the wind?