They're only as good as the person that maintains them. They have to be cleaned and oiled. I prefer OEM on all my vehicles. I bought a Harley that had a K&N. That was the only time I've ever used one. Google reviews for K&N.
If you read the nicoclub link I posted, the tests posted show that the K&N is less restrictive, but it also has a lower capacity to hold dirt and lets more dirt pass into your engine. If you're racing your car on a track and want to clean and oil it after every race it might be worth the trouble. If you're only driving on the street then it may cause more wear on your engine.I was thinking more from a performance aspect, but I see your point. Wouldn't feel like having to maintain the filter.
Thanks for the feedback.
The most important part of an air filter is the fit. If the gasket doesn't make a good seal, then unfiltered air is getting inside your engine.I have the AEM filters which are the dry [email protected] filters. They were not a true fit, tried to explain and work with them and they were no help. To get the AEM filer to fit, I had to trim around the molding. So now waiting on AFE, these look like the factory fit.
aFe POWER 31-10271-MA Magnum FLOW Pro DRY S Air Filters | aFe POWER
If you just have to spend some money, spend it on something that you're going to notice. If I sneaked into your garage and installed K&N filters, you wouldn't notice any difference.It's official. I will be keeping the OEM filter. Trying to find as many non-warranty voiding mods as possible lol. I'm running out of options
I find the Rims and Tires comment quite surprising. Although, I guess if someone goes and puts tires that are way different than stock and for an AWD Q60, puts tires that are more than 1% diameter difference and their AWD system screws up.Good read:
"5 Dumb Things That Can Void Your Car Warranty"
5 Dumb Things That Can Void Your Car Warranty - Autoblog