I will be getting the muffler sometime this week. My newest question is how to determine if I should replace all the piping? It is my understanding that the stock system is stainless steel, but I thought that ss didn't rust and there is a coat of rust on the piping. I just want to do this right and not have to worry about the piping rotting out after I have the muffler welded in.

Thanks


Mike
2005 Toyota 4Runner SR5. 1994 Isuzu Amigo XS 4x4
http://community.webshots.com/user/98amigo