I've polished my manifold a couple of times now, it always goes brown so I've had it chromed see how long that lasts.
I really hope so.! Hopefully a nice blue colour rather than a dull brown, which polishes ok , but needs doing every couple of years. Most chrome companies won't touch a manifold which isn't straight through, too hard to clean.
Make sure you clean any greasy fingerprints off the chrome before running exhaust gasses through them.
this! i used to wipe my panigale pipe down with wd40. It would smoke like a 2 stroke for a bit but they’d go gold with a good bit of heat through them
If it doesn't work for you long term, try Cerakote. This stuff is super hard wearing and deals with the heat phenomenally well.