Question on B16 Headers! PLZ HELP
 

Hey guys i need some help! I want to install DC 4-2-1 Headers in my 2000 Honda Civic SiR (B16A2)I Currently have a exhauste muffler and i cut off my resantor and put straight pipe, other than that the pipe is stock. I was told that my stock pipe is 2&1/4 Inch outside diameter and 2 inch inside diameter. i been online to check the headers out and i notice that some headers say 2inch,2&1/4,2&1/2,2&3/4inch and they all say for B16's..now my question is, is my collector size from the header to the cat a different size or is it in fact 2inches. I really need to know cause i dont want to purchase the wrong size.

Thanks

normally stuff off ebay comes to your door being the wrong size...

:)

jks... well, if you are looking on ebay... don't... use the for sale thread here... it should be 2 1/4" for the collector on your stock exhaust header...