davey_83 Posted May 10, 2018 Share Posted May 10, 2018 It's widely accepted the best intake for the MY03-05, is to maintain the factory airbox setup or to upgrade to the revised MY06 airbox with built in velocity stack. Whilst doing this, are there any benefits in choosing a particular type of panel filter to use? Each has their pros and cons, however the options are: OE spec paper - ie Nissan, Bosch, Mann Cotton gauze - ie Cosworth, K&N, GreenCotton Multi layer foam - ie HKS, Pipercross, ITG Although I don't do many miles per annum, I thought I'd swap out my lovely Cosworth filter for a Pipercross one as I've used these with previous cars and had no issues. My thinking is the multi layer foam filter should not only provide better filtration, but maintain performance for longer. Velocity stack idea.... Cheeky Swap out pictures showing each type of filter: The following couple of links point towards aftermarket being a tad better than OE overall. 1 Quote Link to comment Share on other sites More sharing options...
Flashback Posted May 10, 2018 Share Posted May 10, 2018 Personally I use an ITG foam filter, just needs cleaning at service time so I always get a discount there. As you are probably aware foam filters should have great air flow characteristics inherrently due to their structure. They also have excellent particle capture characteristics and so perform very well at the other job key to a fiter, i.e. filtering! IMHO foam panels are the best option for all round performance and longevity. 1 Quote Link to comment Share on other sites More sharing options...
zippypooz Posted July 9, 2018 Share Posted July 9, 2018 Nice post Daveyboy. I use a Pipercross, had no issues fyi! 1 Quote Link to comment Share on other sites More sharing options...
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