So every since I first got my Z I noticed that with the car in neutral in the my foot off the clutch I heard this kind of rattle. Lately it seems like it has been getting worse. At first I figured it was just the way it was designed but lately I'm worried. The olny mods currently installed are the POP Charger and a system so its not anything I've put on. I have an appointment with the dealer on Friday to replace one of my rims and I was going to ask them about it but then I'll have to leave my car there and its a pain. Does anyone else have this same thing happening. If its the clutch I know the dealers going to say they wont cover it. GEICO has the mechanical break down thing that I have that will pay for a new clutch but if I'm going to replace I'm not going to use a factory one. So firstly do any of you have this happening, is it normal? Second if I need to replace it which one should I get?