Recognize this exhaust 1982 gpz 750?

Purchased this project last August for my birthday present for $600. Anyone have any idea who makes this exhaust system, dont recognize it. The muffler was silver in color, steel construction with irremovable baffle

Sweet looking bike, especially for the price !!!! I believe it may be a MAC exhaust.

I agree it looks like a MAC. I just put one of theirs on my 83, it has a black header with a chrome muffler and the baffle is rivited in.

I don't think its a Mac, it has a slot on back side of muffler with flat steel bracket to footrest mount. It has one bolt to remove baffle. It looks to have had a name plate on the muffler,because there are two holes in the muffler. I repainted the bike last fall, I was factory red. Still more to be done.