Originally Posted by Mpower
Never heard of anodizing for steel, at least for automotive applications and definetly not for exhuasts. The process I am refering to puts a hard oxide layer on Al.
Originally Posted by ananthkamath
I am talking about what our local tuners do....not the OE systems which are definitely aluminized. And anodizing (also called zinc passivation) can be done on any part, be it ferrous or aluminum.
I'm sorry..You're right..i just checked up with the guy who does my work...its indeed not anodizing which can only be done on an Al part....Like I said, its called zinc passivation, a type of electroplating which you can see commonly on fasteners....Comes in yellow and blue colours (actually the blue looks more like white)...Sorry for the error.