as above , does anyone know for certain if an oem ST170 exhaust manifold is stainless or just mild steel ?
A magnet will answer this question better than anyone here.
Very true , but i havent bought one yet and only want to if its stainless , hence the question
[Edited on 21/8/17 by rayward]
I've attached a pic of one i have cut (trying to fit to the avon), at face value i'd say not (surface rust), but i did cut it a while back
and there is no rust on the exposed areas, could it be a low grade?
It is magnetic, guess I could leave outside and see what happens.
Judging by the rusty state of mine, no they're not stainless
thanks fellas , looks like its back to plan A and building one from scratch then !!