This harness extension kit is built using the original housings, latches, wire seals and terminals, along with MIL Spec M22759/32 Tefzel wire.

When installing long tube headers in your 350z you will need to extend the primary o2 sensor wires, with this kit you will no longer have to cut/splice your o2 sensor wires, it's a straight plug and play!

***PLEASE INSPECT YOUR HARNESS BEFORE ORDERING AND MAKE SURE YOU HAVE THE MODEL WITH 4 WIRE O2 SENSORS IN PLACE, THIS WILL NOT WORK WITH THE LATER MODEL 6 WIRE O2 SENSORS***

**ALL ISR PERFORMANCE PRODUCTS ARE DESIGNED FOR OFF-ROAD USE ONLY**