Any guess on what add-a-can will be available first? What are the top performers on the XP? I'd buy it before taking delivery of the car just to have something I can touch. In weight savings & sound improvement alone, I'd be a customer. Eventually I'll end up with the exhaust from whichever turbo I'll end up with, but I can't wait that long. God, I'm a good consumer. Just doing my part to recess the recession.