I am trying to find out the diameter size of the 2004 Z06 complete exaust system, not just the titanium part. Is it 2 inch, 2 1/2 inch, 3 inch? I put my car on a dyno and stood behined it while the LS6 turned 6000 RPMs. Most amazing. I can't imagine changing the factory system out for any after market system. It just sounds so much better than any of them, in my opinion.

 

I guess that no one knows the answer to my question. Only how to "fix what isn't broken"...

 

Pretty sure it's either 2 1/4 or 2 1/2". I can't remember for sure. I took the factory stuff off and I'm running 3".

 

Ti exhaust is 2.5 inch

 

That's a hell of an attitude to have, especially for someone who refuses to do a search for a basic question with a simple answer prior to posting a new thread.