Hey guys, I hoping theres an expert on these things to confirm my suspicion. I have a set of megaphone exhaust tips that I have good reason to believe are NOS, but without a PN on them its tough to say for sure. I did find a set pictured on Ebay where the tips had a tape ID tag on them that supports why I wouldn't find a stamped number.
Heres a few pics with details, perhaps one of you can confirm.

Both have the internal deformed pipe

Each is deformed intentionally leading up to the chrome tip

I’m pretty sure originals and NOS have a weep hole on the underside in the pipe near where the chrome tip starts. I haven’t seen repros with those.

I’d guess those are repros. In addition to the lack of weep holes, I’ve never seen an NOS pair with really nice chrome or great black paint. I can post some pics of an NOS set later tonight.

and each carry a raised dimple at the muffler connection.

The NOS tail pipes have a small locating tab on the inlet tube.

I have not seen that on any reproductions yet.

I have an NOS one here and I have a pair of restored originals installed on my T/A.
(the quality of the chrome on these is poor enough that I doubt anyone would want to install an NOS pair on their car without having them rechromed first).
My NOS has the Chrysler part number tag approximately 4" from the chromed end "megaphone". There is a 3/16" diameter drain hole on the bottom of the pipe in the middle of the area around 6" from the end that installs in the muffler. The flat on the pipe leading into where it's welded to the tip doesn't have a distinct tooling mark like that shown in your picture.
And finally something I noticed on originals that I'm not sure if the repros have, is a small nipple or nub 1-3/4" from the end that installs in the muffler which is an indicator mark to how far the pipe inserts into the muffler exit pipe.
It's been a while since I looked closely at a repro, so I don't know if they have these details the originals have.

Thanks for the help, and you would ask about the bottom, I don't recall anything particular about them on the bottom other than what appears like two small weld spots.

And who said the chrome or paint is nice, LOL They do look pretty good but I got these with the car purchase 12 years ago from a guy who purchased the car as a project in 1982. He started collecting parts for the 'one day' project. He lived in TX for a bit and moved to AZ shortly after purchase, so I suspect these have been stored in a great environment for this period.

Barry, are you thinking of the notch on the muffler?

The locating tabs on the pipes fit in the notches on the mufflers.

So am I to understand that both connections to the muffler carried the cutout tab, meaning that both the head pipe and exhaust tip would have the added mating slug welded to it?

If thats the case, this is an easy visual to say these are not originals.

Any pics of this? or perhaps one of the others will post up pics shortly

Heres a set of mufflers listed as original that recently posted on Ebay, note the notch appears only on one side.

I also included the claimed original tips, that coupled with another factor had making me think these could be legit.

"positioning spuds" mentioned in the installation instructions at http://www.hamtramck-historical.com/imag....%2080%20p2.jpg

There is a tab on original head pipes that inserts into the slot.
The nub or nipple prevents the tip from being installed too deep into the muffler, and gives a guide as to how far the tip inserts into the muffler. There is no slot for it, you install the tip until the nub contacts the muffler exit pipe.

Just noticed something else while looking at my NOS tip. There are actually 2 positioning spuds (as an engineer I need to use the correct term, thanks Barry for clarifying that!). And the positioning spuds are on a horizontal plane on the pipe (9 o clock and 3 o'clock positions when the pipe is installed)

Any chance of getting a pic of either set you have?

I'll take some pictures. I'm usually on my iPad these days but will fire up the ol laptop later today, download the pix and post.

Sorry I dropped off for a bit, its Easter and I got called to Cheese Cake duty, pretty mean Amaretto recipe.

So I just went and pulled the tips again and to my surprise there are two spuds on each. Since its hard to capture both I have my fingers placed over them to show orientation. I'd call the clocking about 11 and 5 on these

While I had them out I saw no sign of any "Drain Hole", I'd sure like to see your clocking and drain hole pics.

And thanks for all the help guys

On a side note I had these as well . . . just thought interesting.