are exhaust flanges for the different series of b20s the same
?? for exmple would exhaust falnges match up to ports from a crx b20 or accord b20?? could i use headers that are listed to fit a b20. or is it possible that it is for a diff b20 series?? thank you for any info

 

nope not possible. the crv b20 and the 2nd generation prelude b20 do not have the same header or intake designs as the 3rd gen prelude b20 and b21.