Dry Filter Worth It
There are few easy modifications that effectually increase power and drivability - a good high-flow filter is one of them. I have used oiled filter in past vehicles with no real issues, but I wanted to find a reliable high-flow filter that did not rely on oil for our new Crosstrek. Grimmspeed's filter dropped right in and wife and I both agree the car drives better, especially several drive cycles and the ECM learns new AF values. I'd recommend this particular filter to anyone. Oh, and yes, I said 2023 Crosstrek. The XV's airbox size for filter opening is identical to the WRX. P.S. I used some Grimmspeed boost control parts on a past vehicle with no issues ('12 mazdaspeed3).