Air Filter which is better? Options

[alex_k]

My car have the stadard air filter...Its better to change it and put a mushroom air filter? Which one do you suggest me? I have listen very good opinions about the weapon-r dragon filter?

[Syaoran]

I saw a filter comparison somewhere where a couple of filters were tested against each other in a filtering and airflow test. Mushroom filters came out best flowing because the ones they used were designed with a velocity stack integrated into them which helps flow massively.

Cone filters the K&N was the best in terms of filtering but required maintenance (cleaning and re-oiling) to keep its filtering ability up its best. AEM Dryflow filtered less but requires less maintenance (just clean with water) and flowed a little better too iirc.

Apexi filter was the best, I think it filtered better than the K&N and flowed better too, but was really more expensive than any other filter. I think the other filter they used was the HKS mushroom.