Owner reviews for air filter

I've used Denso and I'm running Bosch right now. They both work great.

2020 wrx premium has 217000 miles, stock except K&N air filter. Change oil every 6000 miles and tap out and remove debris from air filter every 3000 miles and clean every 6000.

OEM filters will generally run you $30-$60, you can get cheaper ones like Fram as well.

Can confirm Fram CF12772 fits. I have replaced mine twice.

So I went out and bought Bosch aftermarket filters and changed them out myself.

replaced OEM with K&N 6 months ago and have not had any issues

I did this to my 7.3 and 6.0. Did I notice anything? Not really. But mechanical and engineering theory it will do something. How is it called a "cold air in take" if its sucking the hot air within the engine bay?

I’d do have a K&N air filter which is supposedly good for better mpg.

If not, get rid of that K&N. High flow air filters let everything in, you do not want road dust a debris getting into your engine, and a K&N is the best way to causing that.

The reusable filters don’t filter as good as the paper ones you throw away. I can’t understand why anyone recommends drop ins. Just do any amount of research and everything says the OEM style paper filters that are meant to be replaced have a far better ability to filter the air being taken in. I guess the only benefit to the reusable ones like K&N or aFe are the longevity factor meaning you can clean and reuse so they cut down on maintenance cost a little.