I think he means you need the STi oil pan for it to fit the WRX...and that he doesn't need the head anymore. ...I think
I'm interested but...if its the megan header on MAP, it should bolt right on. I dont understand why it needs the sti oil pan.
HUH??? Anyways, the megan is suppose to be able to install on both wrx and the sti without changing it to the sti's oilpan.
i had it on my 02 and it ever so slightly touches the oil pan. i also had to trim a lil off the sub frame.