Im going the custom route when I get home. If you do a search on here you will see arguments and valid points about the way Honda designed the exhaust / header system. I for one agree witht the guys who say that its built that way for a reason but can layout I am going for wont let me use the stock headder. Just as a ball park if you are interested going this route... Megs Exhaust

 

If you find a header you need to make sure it follows the same outlet location as stock. For instance with a two brothers header you can use any slip ons, stock included. But others like Indigo & Akrapovic are dedicated full systems and can only be used together as the outlets from the header are in different places and you must use the midpipes that are part of the system. I know others who have done motor work will chime in and this has been discussed before but I don't know if you'll find much gains on a stock motor. As far as where to get a two brothers header you just have to be patient and search. I've bought 2 over the years-one off here and one off ebay (it was listed as stock hehe).