Okay, so I know others have posted the same questions for their vehicles, so I'm sorry for the repetitiveness. What can I really do to get the most performance out of my automatic 2.0L EX, that won't give me any warranty issues? I have the TK CAI and will probably get the exhaust to go with it. There are racing headers, but will those give me more power? The headers will probably void warranty though huh.... Also thought about the lightweight pulley and I've been seeing people talk about flashing the ECU. Any thoughts, ideas, or suggestions? Just a bunch of questions. Sorry, but I'm not very tuning inclined and have never done anything to past vehicles. Thanks in advance.