i was looking at that pipe yesterday. to bad the pictures hide the manifold and no heat sheild.
the ebay pipe looks like an aftermarket tomos refitted. no u cannot find those for 10-20 dollars in junk piles.
honestly for me i love the grubbee race pipe w/o silencer. i am still looking for a great tail section as im using heater hose currently. seems half inch copper is next. it has large midrange power to nice over rev then at 6500 it sings again.
it is about 30 bucks and very light.
This one was $10.
This one was $12
May not be the actual Tomos you mentioned, but the shape is what matters, not the name on it.