1967 Barracuda Commando Stock Y-Pipe and intermediate pipe

Other than no resonator it looks virtually the same as a Commando/Charger 273 exhaust. The intermediate pipe should be about 2.25 or maybe 2.5 ID
Thank you for that, the intermediate pipe is definitely 2 1/4 may be closer to 2 1/2 inch, but it’s compressed, so it’s hard to really tell.