Beware that a ceramic coated header can rust as well. I don't know the specific cases of why or when they do. Seems like most have good luck with them and some don't. I have TTi headers and they supposedly weren't supposed to rust. Yeah, they are rusty and look like crap. The other bad part is that I'd have to pull the motor to replace them! They still do their part on keeping the engine heat down though. I will give them that.
