Air filter K&N or Fram

K&N but from everything I have seen/read the Motorcraft OEM paper is awesome and you don't need to find a different solution.

Eu, gostaria de um filtro esportivo da K&N ou RS Air Filter...

K&N Airfilter

You can get a better that oem air filter for almost a third of the price air filter get the reusable K&N better performance youtube videos on the steps to replace (both not hard)

I have 260 on mine. Kept a log book of all maintenance ive had since I bought it in 2013. Regular oil changes at 4000. Even though the oil says 10,000. I use Castro edge. Got a KnN air filter that i clean every oil change.

There are little to no performance gains from adding a "performance" filter to a Mazda3. The benefit of K&N, imo, is cost saving due to reusability.

I swear these FRAM filters have a thicker gasket than others. The OEM filters I could pull out and get back in no problem, once I changed to FRAM, it felt nearly impossible to get flush. I got one side perfect and fought with the other one for too long, ended up giving up on it and left the small gap. The gasket is keeping it airtight, it just doesn't look good.

K&n filters for low mileage things like a motorcycle, cool. For a commuter car, pain in the ass. I would much rather quickly swap a filter for a few dollars vs cleaning, drying and re-oiling every few k km.

Yeah you aren’t going to get a whole lot from a K&N ‘upgrade’ except maintenance. Use what the factory specifies.

I always say this as well. I have a k&N in my car. Both air filters. I've had the dealer pull it out and tell me it needs replaced then damaging it while putting it back in. So now I make sure they know not to touch it