Im ready to put my FM head pipe on my 13 Fltrx and It doesnt say if I need to use my 02 sensors? I dont think I used them on my 11 Fltru I just put the 02 sensor plugs in the holes and plugged in the PCV. Its saturday and I cant call them till Monday so I cant call till then and was wondering if someone here had a 13 with the FM head pipe and could tell me.

 

If you are using a PCV ya don't need O2s. Flash tuners retain O2 operation. Has nothing to do with the header.