Air filter,primary and secondary

[RedRide]

Originally Posted by 1stToyota

You might get a little more power w/ it removed...until the MAF quickly learns to adjust for the extra FLOW, unless maybe you're always at WOT...and it's nice insurance to have in the event you have an oiled filter installed.

The MAF sensor simply moitors air flow and the ECU/PCM adjusts fuel flow acordingly to manrtain a proper air/fuel mixture. Otherwise it will be running lean every time you increase airflow.

Anyway, from what I can gather from reading, it seems that removing it ("the carbon trap") does not really increase perfomance to any worth while degree.

BTW, I never had a problem with a K&N filter in all the years I have used one. :smuile:
The one problem I did have with a MAF was on a car that didn't even have a K&N in it and was running the stock filter.
If I had a K&N installed, would this now have been blamed on it?
We all have to be careful not to jump to false conclusions.

Also, even Toyota a sells oiled, K&N type filters... it's called a TRD filter so even Toyota has no problem with them.

Some very interesting info. Be shure to watch all the videos.
http://www.knfilters.com/MAF/massair.htm