Over the years I've installed several different brands, mostly on other than Toyotas.
On my 3 22s, I've only installed the Doug Thorley tri-y - painted, chrome, and ceramic.
I've installed the steel one and painted them with header paint.
I've installed the nickel/chrome plated ones.
This latest one for my recent 22RE rebuild I bought the DT ceramic coated one.
It is by far the best header I've every run on any of my engines.
I love the ceramic coating. You have to be a careful not to scratch it during handling and install, but it stays looking really nice!
If I buy any other header for any other engine it will be a ceramic coated one.
Gnarls.