Ok, I have searched and searched but to no avail. All I can find is 300 threads about CAI's, HAI's AGS...BBQ....

So what resources are there to determine the best OEM replacement air filter? what are the opinions? Has any magazine actually tested all the brands to find the best?

 

mikem53 posted this link not too long ago

http://www.bobistheoilguy.com/airfilter/airtest3.htm

That might help you in your decision.

 

Thanks, that is pretty good....It showed the diffrent types of filters. But my choice is kinda down to std drop in replacements. Napa gold seems to get some praise. But which brand is best? Fram, Stp, napa....etc? anyone have any more data?

 

If going paper I was always pleased with Fram; but I've found it much cheaper and just as within warranty to switch to the K&N replacement drop-in and just ake the 5 min. to clean it.

 

Try searching for drop in Air filter.

Whether for the MC or MCS you can use-
The stock OEM air filter
K&N air filter (various vendors)
UniFilter (foam) via Webbmotorsports.com
Green Performance filter (piloracing.com and other vendors)

Doesn't really matter that much but the foam filter seems to work well.
The results from a performance standpoint isn't that much different between brands. A clean free flowing filter is better than a dirty one.

 

No doubt get a K&N. Yea it will cost a little more BUT it will last FOREVER! I ran K&N in every vehicle I owned. You WILL get better gas milage and they are super simple to clean. In conclusion it's my opinion that the best drop in filter would be the K&N -- Johan

 

I dont want a K&N or other "performance" filter....as the link in the second post showed that those filters gain performance at the sacrifice of filtration.

I agree with the premise put forward by bob the oil guy -" I actually received an e-mail from K&N stating their filters filter within 99% of the OEM filters. This may be true, and 1% may not sound like much. I contend that 1% over many miles, may be important. Really, it is up to each individual to decide. The poorer flowing filters, remove more particles, and the better flowing filters remove less particles. If you think about it, that conclusion passes any and all common sense tests, so it is not surprising"

I would like this thread to focus on the very best OEM replacement product.

 

I found this data.....
http://home.usadatanet.net/~jbplock/ISO5011/SPICER.htm

Has anyone else found any data or tests on air filters?

 

Id stay away from Fram filters. They have a good name but are junk. Napa has good filters. They are made by Wix filters, which are equally as good. STP filters are also budget filters, which usually means quality is sacrificed.

 

If you want to stick with the standard style filter, stick with OEM. No point in going with anything else just to save a buck or two.

 

I changed my air filter on day one. I installed the ITG foam filter, it provides great air flow from the stock box and is better than K&N. I used K&N for years until I got yhe ITG and I will always use the ITG.