Really nice USED 911 turbo (930) muffler for sale taken off my 1979 930 in the early/mid 1980's and replaced with a stainless aftermarket unit.  In great shape.  I've kept this muffler for over 25 years since buying the car but now it's time to sell it.  The muffler has been kept in dry storage all these years.  As much as I would like to keep all the original parts/equipment to pass on to the next owner I don't think this muffler will ever get back onto the car.