FS: GT3 muffler

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01-10-2017, 06:42 PM

#16

Spyerx

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Quote:

Originally Posted by provoste

Exactly! Lower opening is the "loud" straight through setup. Top is the smaller inlet "quiet" setup. Oh, and the muffler can't support capping lower and running through top (quiet) inlet only- not on track at least. I did so to meet sound @ NCM and caused a seam on the backside to split.

this is very common with the GT3. if you look at the internal design of the muffler the lower holes are nearly straight pipes with some internal chambers. The top holes have a very long path to exit.

internals of a GT3 muffler. VERY efficient design.

From this thread on pelican:
http://forums.pelicanparts.com/porsc...version-4.html