can i use any ej20 headers, up pipe, and down pipe for an ej20g or do i have to source weird parts like everything else on this engine?

....yes.

not sure about headers but yes to the uppipe and downpipe

yes on all accounts

i have been thinking about ebay headders for my ver 3

or do i have to source weird parts like everything else on this engine?

So true, so true......:D

I have the equal length manifolds, wonder if headers would make any difference at all. Mine does sound "strange and wimpy" compared to other subaru's with the equal length manfolds though.