Yoshimura RSC full exhaust rusted in less than a year

[Toddman_imp]

I'm new here but I'd like to chime in. Been riding for about 40 years and have had more than one set of black headers. They just need to be painted when this happens (and it's going to happen). One possibility exists that when they were installed, they weren't cleaned before they were cured. Grease/oil from your hands will eventually lead to this if heated and allowed to cook onto the pipe surface. The fix is easy enough though. Take them off and sand lightly. Shoot them again with heat paint with a thin two coats. After you install them, clean where they were touched and go for a ride. They will smoke a bit at first and they will look brand new too.