Has anyone changed a Cabin Filter before on R34?

[IM-32-FK]

Has anyone changed a Cabin Filter before on R34?

Hey guys,

I want to change my cabain filter/ pollen filter/ air con filter on my r34 gtt and i was wondering if you need only one filter or 2? Because the only listing i see oln ebay is one that only sells you 2 filters at once.

http://www.ebay.com.au/itm/Replacement-Set-2-Cabin-Pollen-Filters-For-R34-Skyline-GTT-RB25DET-Neo-/152176904141?hash=item236e7347cd:g:f3QAAOSwIgNXkhJK

Does the R34 Gtt have 2 cabin filters that i need to replace or only just one? Also what is that long foam piece that comes with it? Also i bought a air con vent cleaner the other day and i was wondering if i should apply if before or after i change the cabin filter? 

 

thanks

[IM-32-FK]

sorry, the product i bought is Valvoline Air Conditioner Odour Eliminator and Sanitiser. Should i use this before or after i change the cabin filter? thanks

[Kinkstaah]

I changed this recently, there are two cabin filters yes.