I still can't believe they let me do this...
But now it is all legal and in the papers!

My factory sport muffler will stay on my 73 and will roar down the road in Porsche motherland. It turned quite some necks already, on the weekend at the old 'Solitude Rennstrecke' outside of Stuttgart!

My muffler has the number 901.011.080/0579 stamped with the logo of 'Leistritz'.
Was that company just manufacturing mufflers for Porsche?
Does anybody know anything about the source of that thing???

It is looking like it once had the third pipe on the left (but it has been cut and welded shut on my muffler) so has the bumper cutout been closed, so I couldn't just mount any regular muffler anyway...

See everybody at Rennsport and Monterey with lots of pictures from Germany!