‘68 Dart GTS with 440 

‘65 Dart GT HiPo 273 4 barrel 

with resonated tip

‘65 Barracuda 273 Commando 

with factory exhaust 

‘66  Barracuda 273 HiPo

without factory exhaust 

1970 Dart Swinger 218 Dual

with  Magnum mufflers .