Post by
generic808 »
https://forums.nicoclub.com/generic808-u70472.html
Sun Mar 16, 2008 11:21 am
A little surface rust on an exhaust system is normal. It isn't stainless steel or it isn't treated, so I'm sure it will happen to all of them. Now if a hole starts opening up, then you have to start worrying. Other than that, I wouldn't really think too much about it.