Anybody make mild steel downpipes?

[J57ltr]

I have not seen any, but I was wondering why you would want one? Factory exhaust systems are typically stainless steel and have been since not long after manufacturers started moving converters closer to the engine, not all but a lot are. Granted it is a 4 series stainless, but it does last a lot longer than mild steel.

Jeff

[wmorrison65]

Factory exhaust systems are typically stainless steel

Is that true for '01 Grand Prixs? I haven't looked closely enough at mine to tell, but of course with its age, it wouldn't look like shiny new stainless.