2 NOS Monza Pacesetter Big Bore Exhaust Muffler Tips 95-9288 4" Outlet 3" ID Inlet.
Boxes are bad but the tips are good. Can be clamped or welded.
Tips are 10 1/4 inches long total length. Tips are heavy duty and will probably outlast your exhaust system.
I have added pics of a '64 Dodge with the tips welded to a 2 1/2 inch exhaust system. Owner added extra yellow stripes.