o yea, i had to use the extension for the rear 02 sensor, and then for the catback sensor, the sent some wireing and i had the splice the new wireing in to make it long enough. wasent that hard, if you can splice speaker wire and put it together then you will be fine. just keep your colors correct. the colors arent the same but in other words if you cut a purple wire and use a white wire to extend it. conect that white wire to the other purple wire at the end.