Chrome Exhaust Turn Down Tips/Silencers Flat Flange Screw Mount Vintage HD?

Description

Chrome Exhaust Turn Down Tips / Silencers Flat Flange Screw Mount
They are cool, but to be quite honest, I'm not sure exactly what I've got here
Here are the details that I know:
These appear to be some form of exhaust silencers.  I say that because the inlet diameter of the the tips are approximately 1.25" OD / 1.125" ID, much smaller than the discharge end (approximately 2" ID).  I cannot tell if there is any other type of internal baffling.
They are flat flange mount, that is they appear to be designed to screw on (with 2 screws) to a mating flat discharge.  The flange measures approximately 3.5" x 2.125", oval shaped.  The screw mounting holes are approximately 2.5" center to center
Overall length is approximately 13" end to end.  The 1.25" OD insert extension is approximately 0.75 " long.  The length from exhaust tip to the front side of the mating flange is approximately 12.25"
These are NOS, still in the original shrink wrap over thin cardboard.  The packaging definitely has some shelf / age wear.
The plastic film is discolored but the contents appear to be in excellent, untarnished condition (see the "peek pic" through a hole in the torn backing).  They are heavy gauge, weighing approximately 2.7 pounds (including shrink wrap packaging).
Manufactured by MotoMania, Inc Canada.  The company is no longer in business since 2000 so the application would have to be prior to 2000.
I thought at first these might be for a vintage Harley Davidson, perhaps a SuperGlide or similarly fully dressed motorcycle.  They came with some other Harley parts I bought.  However, I have not found any indication that Harley used this type of flange mount exhaust tip on any of their bikes.
Since I'm not sure what this fits, please confirm the fit for your application before you purchase.  If you have any questions or want more pics, please contact me through eBay.
Thanks for Looking!!!