Hi Chaps

Sorry Ive only had a Tenere less than a week but Im learning !
Its a 2013 model with still 9 months warranty so Im not going to do the exhausts yet but am going to order the Kev mod stage 1 and 2 filters but am not sure if I need the o2 sensor mod as I thought I read some models don't have them or its not necessary even if it does.
Can someone put me right on this subject please.

Cheers Spyke