It probably wouldn't fit. Trust me. You can barely get the downpipe in that space where the stock exhaust is supposed to go. My downpipe hangs pretty low. With the 2 pipes you would be dragging your exhaust.
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ