here's my pile of parts. should give you a pretty good idea of whats needed

http://www.rit.edu/~ltk6260/my-bewst.html

thanks for the pics lkailburn.....helps some. So inline pro sells a manifold and downpipe for my 04 civic? This is probably my biggest concern....because I don't really live near any capable muffler shops or anyone else that could help. Thanks for input!!!! :p