Brand new, never mounted exhaust flanges for A Honda CB750 SOHC 69-76 maybe others.

From CycleX :
Exhaust Flange Kit

These exhaust flanges replace your old rusty finned ones when using our 4 into 2 exhaust system. They come with 8 allen head bolts, 4 flanges, 4 sets of the half moon spacers and 4 copper exhaust gaskets.

These exhaust flanges will only work with 1 1/2" exhaust such as MAC systems.

EX-FLANGEKIT $149.95

I went a different route. Save yourself $50.

$100 shipped