man you guys are confusing me even more.... I've been trying to research this. I assumed you can't just replace it with a stock one.
I was planning on getting the berk overpipe that has a bung welded into it.
http://counterspacegarage.com/berk-t...-frs-gt86.html
off topic: Although doing this with the stock headers would be completely useless because of the cats correct? I wanted to start off with a wideband on the Jackson racing SC w/ the carb tune.