The real 273 HP exhaust sound

Yes, I bought it new. All the '65 & '66 273/235 Darts and Barracudas in and around this area all had a muffler and resonator from the factory. I would occasionly remove the resonator and the car was very loud, leading me to believe it was a straight-through type muffler. My recollection is that the few 273/235 '67 cars I ran across were slow. No match for the early cars. Not sure why, heavier I guess with the new body style. I ran F/Pure Stock at the Phenix City Dragway with a best time of 14.47 with a 7-1/4 open rear and 14" cheater slicks. Times didn't seem to improve without the resonator.