Air filter Mann or K&N

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

Best accessory for my Ignis was K&N Air Filter, it really changed the sound of engine which I really liked. Maybe it was Placebo affect but I felt the change in character of the car.

Put a K&N cleanable air filter in long ago I’m now at around 80k mileage and most likely going to sell my 2016 wrx before 100k.

I actually switched back from a short ram to the stock airbox recently and it completely changed how the car drives — smoother powerband, better MPG, and way better throttle response. I do miss the VTEC sound a little, but performance > noise for me.

Air filter change gets K&N.

I don’t recommend reusable performance filters since they can alter air flow enough that you end up running a little lean with a turbo charged engine. This is why a lot of turbo charged engines can’t just have a cold air intake slapped on without a tune. This actually occurred with my 08’ Subaru Legacy GT. Stick to a quality standard filter that offers optimal air flow and filtering capability.

I put one on my 08 , it's good but it throws check engine lights on me.

First step, if it still has the k&n air filter in it, throw that piece of shit away amd get a decent paper filter.

No it’s not worth it.

K&N is awful at filtration just like up the testing. Get the AEM dry flow