In one of my new Magizines . It talks of the new Mustang . Not sure if 09 or 10 . But they said to make the car sound better to the driver. They put a tube from the engine compartment to the passenger compartment to carry the engine sound without making the exhaust too loud. My 6 speed R/T has a lot of engine sound as you go through the gears. And on the road. But I know it sounds off outside . I've heard it in the garage at the dealer . And Shelby Mustangs rev their engine when they see me . LOL Has Dodge put a sound tube in also ?