I have been searching for a while now, and I can't seem to find what I am looking for. I read a post a while back that had a great summary of how exhausts work. It explained cat-backs, mid pipes, etc. It wasn't the sticky at the top of this page, it was more like a crash course in exhausts and was very in depth. Anyone know where this post is? Thanks for the help.

 

search the names rotarygod and charleshhill

beers

 

https://www.rx8club.com/series-i-aftermarket-performance-modifications-23/some-things-consider-when-choosing-exhaust-system-22500/
https://www.rx8club.com/series-i-tech-garage-22/another-one-my-insanely-long-exhaust-tech-articles-73332/

Might be what your looking for

 

dont think that was the exact one, but it more than answers all my questions. thanks expo.