Where did you find that post? 200 mph is unlikely. The restrictors are electronic in nature. The only way to remove them is to use a custom computer. In japan, those pesky auto manufacturers have been known to use something as simple as a bolt under the accelerator pedal. That is a restrictor and probably easy to remove unless the shank is bent. Then a cut off wheel will do the job. As far as exhaust, anything from some aggressive cans to a complete header back system. Don't know of any headers for the 3uz. Not to say they don't exist but I imaging the install would most likely involve pulling the motor out. Maybe not. Complete emissions control elimination. Not cheap. Tires? Wow. Falken, Yokohama, Sumitomo, Kumho, Dunlop, BF Goodrich, - what tires do you want and how much do you want to pay?