I'm pissed! Need immediate advice on O2 sensors-please help!

[Stang_ROTY]

I wish I knew. I"m thinking that it was the H-Pipe that was wrong from the beginning. Maybe it was for a 4.6?? All I'm saying is that it's cheaper for me to mod what I have than spend $$ on shipping this stuff. She'll be all set tomarrow night...hopefully. The bosses for the O2 sensors are in but now the rest of the exhaust has to be modified to fit with the Flowmasters.

Originally posted by jimberg:
I'm still trying to figure out what modifications needed to be made for the swap headers. They're called swap headers since they line up with the h-pipe. If they didn't, how the hell could they be swap headers. I'm just baffled.