I noticed last week that from inside my car, it sounded like it was developing an exhaust leak. Then I noticed that it was very much rpm specific noise. At exactly 2,000 rpm it seems to start and it seems like it's the worst at 2,000 rpm. Less then 2,000 rpm and there is no tapping at all. It also seems to only do it once the car warms up. It sounds to me like it's coming from the supercharger area or maybe below it. I also took the time to check the oil while I had the hood open and it was down almost a quart and a half. This means I've burnt over two quarts of oil in the last 3,000 miles. I'm almost certain the oil is leaking through the exhaust valve seals but I have no idea what could be causing the tapping noise other then valvetrain. Any ideas? Thanks, Brandon