I have a new in box Autospeed catted downpipe for the LGT 5MT. It is one of the best fitting downpipes for the LGT.
http://www.legacygt.com/forums/showthread.php?t=77928
I am selling it for $420 paypalled and shipped, but I will take I will take $350 cash picked up.
I have read that LGT downpipes will fit 08 WRX, but I can't guarantee fitment.