Oiled filter vs dry filter

[Grebnitty]

Which one is better and why?

[Ponyryd]

Dry is better for mass air cars, only because the oil can find its way through the filter and contaminate the sensor.

[Scrape]

I also prefer dry. I had a aFe dry filter on my S197. I need to sell it off somewhere.

[tulowd]

R2C roundy round dry carbed filter makes measurably more power than the K+N oiled version; in part because of the molded base. Obviously there is no simple answer - oiled idea is good, as long as they are oiled correctly and with the proper materials. The MAF issue is non existent with dry, but if it doesn't filter as well there can be other issues.

[ZR]

Max clean = quality paper plus no issues with MAF

[Mustang4]

Over oiled a K&N once and got MAF issues, went dry ever since with no issues.

[Grebnitty]

Yea, I'm going dry flow. AEM has a nice reusable filter that I think I am going to buy.

[throttleX]

Over oiled a K&N once and got MAF issues, went dry ever since with no issues.

A buddy here got the same experience with oiled K&N.

[ZR]

If running a K&N, your almost better to have a second one you clean n tuck away for when it's needed. Although, remove some new from the package that have been clearly over oiled as well.

[Laffs]

Good post, have to replace the old unit on my car this spring as a part of a tune up. Had been using a K&N that I would clean, oil, tamp with a MF and let sit out for a few hours before placing on car. Probably going to go with a dry element this time.

[Grebnitty]

I ordered my AEM dry flow filter today. Apparently it's washable and reusable which is nice. They claim better flow and increased response. We will see. I think my days of using the very commercial K&N are over. No more oil!