For sale:
A pair of catalytic converters (left and right) for an early model year 986 Porsche Boxster (1997-1999). I'm not sure but from looking at parts catalogs I suspect these are also proper parts for the 2000-2004 model years.
These parts sit between the exhaust header flange and the U-bend pipe that connects to the muffler. They include the heat shield and the flange for bolting to the exhaust hanger. Each one has both a "pre-cat" and "post-cat" bung for an O2 sensor.
These are original Porsche factory parts removed from my car, which passed the car's California smog inspection before I removed them. (I then converted the car into a dedicated non-street-legal race car with a race exhaust.)
$300 for the pair.
Part numbers:
right side: 99611392101 + heat shield 99611342100
left side: 99611392201 + heat shield 99611342200
In the attached parts diagram, these parts are items 13 + 17, and 14 + 18
If possible please email me using my forum user name at gmail. (You can also PM me but I don't think I notice those in a super timely fashion!)
I'm located in the SF Bay Area (hopefully we can avoid shipping).