SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
It's a quite simple job. You will need.....
Socket set, various extensions totalling 12" to 18" in length, swivel socket, a can of PB Blaster for the manifold bolts, a new manifold to midpipe gasket for the passenger side (about $6 @ Autozone; the driver side is a compression type fitting and uses no gasket), an O2 sensor wrench (very helpful but not necessary) and some jackstands or ramps.
Do a little digging around here; there have been several threads on this subject detailing the removal and installation of this part. It's pretty easy and can be done in the course of about 2 hrs (less once you know wtf you're doing).
2001 GT Convertible
All the usual bolt-on's /200 I6, C4
And a few Explorers too... 2008 4.0 XLT 4x2, 1996 XLT 5.0 4x2, 2003 Sport Trac XLT 4.0 4x4