I don't know if this applies to everyone out there but I just called my service center to my dealer and this dealer has been great so far with everything, understanding, reliable, and has given me lots of breaks on the financing, but anyway I called the service center and asked him what things would void the warranty. Now I think after reading thread after thread of people saying they dont want to void the warranty I think their unclear on something. Mazda voiding our warranty isn't a big huge area where if you do something to your car they void your warranty. It is strictly problem related. So say you go to your dealer with a fmic they wont just void your warranty as soon as they see it only if a problem comes up that is cause by it but this also doesn't void your warranty it's just not a "warrantiable" (that a word?) situation and you still have it say if something happened to the brakes. Just anything related to the fmic wouldn't be covered if it caused the problem. Now this could just be for the dealers around here cause there's tons of people in this area that mod their cars. I mean I asked the guy if I could get a full aftermarket exhaust system and intake and hard piping and he said as long as it doesn't cause any problems its fine. Hope everyone understood all that. A lot to read up there.