Our 1973 Dodge Monaco 440 cu. in. equipt with all kinds of speed goodies under the hood and in the trans. Those pipes coming out just in front of the rear wheels are 4" dia pipes that go straight to the headers. This thing only weighs in at 2700 lbs. No sound deadener in the whole car and the body panels are as thins as tissue paper, the front bumper is aluminum as are the hood and the front fenders. Drove this beast to LV from Reno to the NASCAR Race in March of this year and you wouldn't beleive the attention it got from the locals on US 95 (something about the exhaust system ) You don't even want to know what the gas milage was If you know where there is another one of these cars located PLEASE LET ME KNOW. According to the Chrysler Data Base only 256 of these things were made in this configuration, and this is the only one in the State of NV according to the DMV records