Ok, I posted a few questions about muffler selection and size so I decided to crawl under the Tahoe and measure it up. The stock muffler is 7.5" high by 12" wide by 24" long. It has a single 2 3/4" inlet from the cat and then on the outlet side it has two 3" outlets that go directly into a "y" and a single 3" pipe. Is this the standard setup??? What is up with the two 3" outlets to the "y" not sure I understand that one. Can anyone explain that to me?? It is an 02 Tahoe with a 5.3 in it.
Rich
Rich