I have a ceramic coated DC 4-1 header that will work on all b series engines. It is made direct fitment for b18 integra, on b16 engines or at least my 2000 sir the flange is off angle a bit at the cat but can easily be modified to fit all b series applications.
$100 obo.
The bottom is dented in from being on a lowered vehicle but no holes no leaks.