Not sure which DC header it is, but I have an Injen short ram intake on it so I have no clue I can give a link to the pic of it. I bought it from a guy on autotrader and the pics are still up with pics of the engine and what not so here is the link.
http://www.autotrader.com/fyc/vdp.js...ce=&cardist=34
The smell starts coming when the vtec kicks in just over 5000 rpms my buddy said it smells like a burnt perm lol. I really have no idea on it. Any other ideas? I mean not to day that any of it's wrong would my best bet be to take it to a performance shop and get it tuned?