65 barracuda Commando 273 /Formula S?
Mine 65 S came with the single large resonator tip, which is cool, but now has dual exhaust. It is so much easier to do up custom duals these days than try to make it like it was original. My rear also has the same notch. I thought about bringing the two ends together but it just came down to cost and the money was better spent elsewhere. If it were truely original all the way I would go for preservation but alas it was not and is not so performance is now the goal. I like the dual exhaust rumble anyway! zoom zoom 360 crate motor 500 hp out of box!