Two OEM mufflers, which is which?

[evan9eleven]

Originally Posted by Johnny Danger

I posted the bottom photo - showing the amount of wadding the oem muffler is stuffed with. As far as a recommendation is concerned, I learned long ago that exhaust sound is very subjective and a highly debatable. Therefore, I refrain from giving any suggestions at this point.

No subjective auditory suggestions needed, but enquiring minds want to know which of these mufflers is which. If the pic you posted is in fact of an OEM muffler, then the question remains what model/year it came from. My suspision is that your pic is the "new and improved" version on facelift cars and that the chambered version is pre-2003. But no one seems to know for sure.

[Johnny Danger]

Originally Posted by evan9eleven

No subjective auditory suggestions needed, but enquiring minds want to know which of these mufflers is which. If the pic you posted is in fact of an OEM muffler, then the question remains what model/year it came from. My suspision is that your pic is the "new and improved" version on facelift cars and that the chambered version is pre-2003. But no one seems to know for sure.

It's my understanding, that the the image in question is of an oem euro spec muffler. How the internals differ from that of a US spec model, I'm not sure. However, my initial reason for posting the image - was to show the amount of sound deadening material the oem muffler contains.

[evan9eleven]

Originally Posted by Johnny Danger

It's my understanding, that the the image in question is of an oem euro spec muffler. How the internals differ from that of a US spec model, I'm not sure. However, my initial reason for posting the image - was to show the amount of sound deadening material the oem muffler contains.

I have been digging around and can't seem to find anything to indicate that there was a euro spec version of the muffler. If you look at this from Porsche's perspective, it would raise costs to have two versions of the same can for different markets. I doubt they would do this unless there was a really good reason (as they did with the USA pre-cats to meet emissions.)

No question that JD is right, that is a sheepload of wool that came out of that second muffler, whatever it is. Which makes it even more interesting that the version with chambers (which everyone agrees is OEM from some period or another) has no insulation, just chambers/baffles.

At then end of the day I guess I just have to buy someone's used 2003-2004 muffler and drill a hole in it to see whats inside before I make a plan to start modding it.