My profile is up to date on my unit. After 18 years and 85k miles, my exhaust manifold has held together ok(bite my tongue). I know it is a matter of time until the dreaded 460 v8 manifold virus str...
As noted above, whatever brand header you settle on, if they are not stainless, be certain they are ceramic coated. Mild steel, or even painted, headers will be hard pressed to last 10 years without rusting through.