Air Filters

[ywonder]

What air filter do you people recommend ? Why?

 

[steel21]

I have the K&N...

 

[MrElussive]

Obviously, K&N is the way to go. They are a well-known brand and they deliver. With a K&N air filter, you'll gain like 1 or 2hp, but your engine will be eating more shit. Decide if it's worth it for you!

 

[ajy1013]

...but your engine will be eating more shit. Decide if it's worth it for you!

Can you explain this to me of how an engine will be eating more "shit" with the use of a K&N filter?

 

[vlad]

It's a pretty heated discussion that has been going on for a long time. The speculation is that K&N filters let more, (larger?), particles of dirt through over the factory filter.

 

[aNoodle]

I use pretty much whatever and I change it often. I've used STP, BMW OEM, and basically whatever I find on the shelf at AutoZone, Pep Boys, etc. I'm sure that is blasphemy to some, but I change my filter twice a year. You can argue whether a K&N is that great (assuming you keep it clean). I think for most people any new filter is better than keeping a filter past it's prime or a cleanable one that is not propertly maintained. At 109,500 I have had no problems.