do you have a sound clip of your car? id love to hear it!I don't know who came up with that piece of information, and if there is any validity to it. Does anyone have a written document from McLaren acknowledging that fact. It just doesn't make any sense what so ever, that allowing the car to breath more freely, would potential void the warranty. That's what I would call a bunch of hog wash please correct me if I'm wrong. Cheers.....����