[s-cars] How much rust should one expect to appear on a stainless steel exhaust?

[Taka Mizutani]

I can't say for certain what Stromung's exhausts are made of, but I had one
on my old car for several years
w/o any rust issues at all.

Maybe it's the high polish that aftermarket manufacturers put on their
systems, but I see a lot more surface rust on OEM systems than I do on stuff
like Borla, Magnaflow, Stromung, etc.

That said, my Miata's exhaust is original and no issues with rust as of yet-
over 17 yrs. old now!

My Invidia exhaust has withstood 2 winters w/o any issues, but the car
doesn't see winter at all any longer.

Taka