Anyone know if the stock rear O2 sensors wiring will plug into the sensors when you install headers and the green catted H-pipe or do you need extensions (I know they dont work for the fronts).
In case you do have an issue....I had O2 problems issues after AMR headers. I discovered the shop used extensions made in Taiwan!! I also stretched the harness to avoid extension but for some reason still had an 02 issue. Early 2017, another Mustang shop installed Raptor F150 O2's with long heavily insulated sealed harnesses. I've never had an issue since.