I would like to ask to you who use Ramair air filter (ex. JetStream) if have any maf or any other kind of problem.
Thank you.

 

Sorry have never used them.

Are they 'oiled' filter or dry system?

Oiled filters seem to cause problems with my98>, so be careful.

 

They are oiled, and much like the the ITG with the "snot" oil. I think someone posted saying there could be problems with MY99 onwards, also consider that subaru took it out of the PPP, which they used on earlier models.