Quick DIY write up that this guy used to avoid the check engine light.

http://www.7thgenhonda.com/forum/showthread.php?t=19006

I want to basically do what this guy did but I'm wondering about the parts list.

Can I re-use any bolts/gaskets or anything? Basically what do I really need to swap it out without having the check engine light?.

If you want to recommend a certain brand of header or anything for me that'd be cool too thanks

 

You might be able to re-use the exhaust manifold gasket, but I'd advise replacing it (for a better seal). The bolts should be re-usable, and your donut should come with the new header.

 

usually when uou buy a new header its comes with both a new manifold gaskit and donut gaskit my megan header did. make sure you get a megan angled simulator for around 25 bucks. yor also mite need to replace the spring bolts they usually rust out the new header will probably come with bolts but i wouldn't use them use spring bolts.if your state has smog checks you mite fail the visual inspection.