This is probably a question I should just know, but are the headers stainless?? Mine have gone a funny brown colour. It doesn't look like rust, but I don't want to take any chances so I've been coating them with ACF50 after every wash over this winter � problem is when I start the old girl up I make smoke signals so thick it could call the fire brigade as the stuff burns off.

If they're stainless I guess I can get away without the ACF � looks like the main pipe to the silencer / cat is stainless ans the silencer too, so perhaps I'm just being paranoid about the headers

Please somebody enlighten this misguided fool.