SHELBY GT 350 Member
Joined: Sep 2010
Location: see user name
Off road or catted midpipe is the answer to this. X or H, doesn't matter - go with whichever one you like better based on sound. Off road (no cats) will be louder than catted, but both will still make a very noticeable increase in sound, plus a nice 10 or so rwhp bump in power. Plenty of clips on Youtube to help you decide.
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