here are the numbers from infiniti computer for low dynoed 03 m 45.

[jamestgk]

thats cool if you like them. I had 1 on my cobra and it killed the maf. Thats enough evidence for me.

wonder why real race cars and drag cars dont run k&n?

how do you know it was the filter. i am a tech with Jaguar cars. we have changed mafs on stock engines

[jamestgk]

http://yarchive.net/car/k+n_filters.html

this is from 1994, what about inovation, maybe the filter is better now. has it been tested since?

[jamestgk]

Great article on the REAL WORLD tests of a K&N: http://www.nicoclub.com/articles.php?id=180100

when was this test done?

[qship96]

how do you know it was the filter. i am a tech with Jaguar cars. we have changed mafs on stock engines

somehow I find the above statement amusing................kinda like the old saying"why do the british like warm beer? because they all have Lucas refrigerators"

[jamestgk]

somehow I find the above statement amusing................kinda like the old saying"why do the british like warm beer? because they all have Lucas refrigerators"

that makes no sense, because a maf fails and it has a non oem filter, unless proven, doesnt mean the oil killed it. so as you laugh go to your local dealership and ask if a maf has ever been replaced without visible damage.

a stated before ive cleaned a many intakes from throttle body to filter due to spitting up oil and the maf worked fine guess youll say K&N oil worse?

[AZhitman]

Jag MAFs and Nissan MAFs may be differernt.

But if there's OIL in the intake tract, that's a problem. And oil finding its way onto the MAF element WILL affect driveability and performance.

When you say "...the MAF worked fine", that means nothing. Was it in spec? What were the high / low ranges?

[Jesda]

K&N kills Nissan MAFs. Search old threads on the forum.

[jamestgk]

Jag MAFs and Nissan MAFs may be differernt.

But if there's OIL in the intake tract, that's a problem. And oil finding its way onto the MAF element WILL affect driveability and performance.

When you say "...the MAF worked fine", that means nothing. Was it in spec? What were the high / low ranges?

i agree oil in intake is bad, my point being that if engine oil can get on a maf and it doesnot KILL it then how can K&N oil do that. i have seen, and im sure others also, mafs fail without unknown reason. i have had water enter intakes and mafs not die.

by specs and engine performance, these mafs were fine. somebody prove it and there will be no more debate.

ive owned nissan and infin for 15 years all have had K&N, some drop ins some cones... no maf replacements. i dont over oil and i clean regularly.

my only worry is this iso test, when was it done?

[Q45tech]

Enough STOCK FED Nissan MAF die or get flaky or just lose calibration vs mass air flow after warranty [70k] that adding any new variable [oil, cotton fibers, modified air shaping/distortions] is just asking for it.

Most MAF failures, intermitents, hiccups are caused by cold solder joints on the internal circuit board or use of a improper solvent on the sensing element...........the thermistor is coated with a plastic protectant that can be washed away.

Since the air flow is always inward [except during a backfire] hard for oil vapor to go backwards from plenum to the MAF even at idle.

[jamestgk]

now thats a technical response i can totaly agree with, thanks.

good luck to all you multi-filtered Nico-ers, i'm sticking with mine. plus a foam of course.