I bought a set of RCX-haust slip ons in May and after about 2K miles the right one started to yellow right by the clamp. I sent them an email to ask if the could tell me what might be causing it and how to stop it. Got an email back saying sorry for the problem. Told me to send them back and they would send me some new ones. Got the new ones yesterday. All I had to do was pay shipping one way. I was not expecting that response from them.

 

If your running stock AFR its going to do it again, lean mixture manifests itself in many ways yellowing at the header attach point is one of em.

 

While I was waiting on them to get back I added VIEDs, decat head pipe, and high flow A/C. Hopefully that will help.

 

they are good people!

 

I'm proud of mine, glad to hear they did you right.

 

Question, are you still running the cat in the pipe?

 

I was before but not now.

 

That could have been some of the problem on it changing color. There sure is alot of heat comes from them converters!!!