hey guys, I changed out my stock headers and a-pipe with an aftermarket set. The stock a-pipe is where the O2 sensor was, now with the aftermarket set, it is on the header. How do I run the O2 sensor to where it was originally plugged in? Thanks in advance.

 

See if you can pull the harness out more from the junction where it meets the main harness. If not, I would just cut one wire at a time and splice in a small length of wire.