Original 340 Exhaust Systems Help

Road Grabber said

I am looking for a vendor for an original 340 exhaust system using the cast iron manifolds for a 1970 Dart Swinger. Did these cars use an "H" pipe? I also see "X" pipes? 2.5 pipes? 2-1/4? I would want at least and aluminized system if not stainless. Any advice for mufflers? I intend to use the exhaust tips as well. Thanks

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Don's will get you a very close reproduction. They might be at Carlisle right now.
No X.
I'm not 100% positive for 1970 but there was no H on 340s in 1968 and 69. Look in the shop manual.

Differences I'm aware of from the pre 70 cars that might be releavant to your 70.
Accurate's pipes use the correct muffler hangers, but last I checked, not the correct tail pipe hangers.
TTI uses the correct tail pipe hanger but hangs the mufflers their own way.
Accurate's headpipe gasket is a nice repop with a fire ring.