Looking throught the Jegs catalog, I see a few mufflers that are of interest- especially the Edelbrock RPM series-409 Stainless and internals, ceramic packing, purportedly capable of handling 1800 F. Also the Edelbrock 304 Series. One muffler that was interesting from a construction standpoint was the Moroso spiral flow Muffler- but it's made from  a "high Grade Steel". Were it made from 321 or inconel it would be an interesting choice for a rotary.

You can peruse the catalog at http://www.jegs.com/

Brian Trubee

 
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