Kind of slapped together
Join Date: Jan 2010
Location: Bossier City, LA
That portion? No.
Be better to get the exhaust off a 4.6 in the yard (I presume you mean a 4.6, not a 4.8 ... since if it's a 4.8, there's a fair chance NO standard exhaust will fit!)
Behind the third cat? Sure, that's all pretty much interchangable (some combos better than others, but it'll interchange.)
Too bad you're over there - there's several 4.6L MN12s here you could scavage out of.