if you go check out v6power.net there is a thread in the 4.0l section by Justin00v6, he tuned a stock 4.0l then with exhaust + CAI etc, it made some good power, you should check it out
edit: here it is
he did a buncha work on his girlfriends '05 v6
http://www.v6power.net/vb/showthread.php?t=25551
__________________
'94 v6 Mustang
Custom twin turbo kit by Justin @ vmp
Split port engine swap from a 2000 v6 mustang
388whp 435wtq
Want to go fishing in the Florida Keys?
http://www.rustyiv.com/