MAF Sensor Question

[MR E30 325is]

Is there a difference between the MAF sensor used in the stock OBDI MAF's that come in the M5x/S5x equipped cars and the sensor that is inside of the 3.5" MAF that we all want to upgrade to?

I want to know to potentially save myself some money when it comes to upgrading my intake system. If I can simply buy the larger housing and swap my current sensor into it, that would be much easier than trying to find, or buying a brand new sensor.

Thanks!

[nando]

my first question is, why do you think you need a bigger MAF?

[M3PO]

As far as I know, that won't work. The sensor is expecting to be in a certain size housing. When you change the size of the housing, the "calibration" is off. The DME will think it's getting a smaller amount of air than it is.

[MR E30 325is]

More airflow my man! An engine is basically an air pump, so being slightly intuitive, getting more air in would yield power gains......

M3PO - There would be a tune for the bigger housing. I am going to do some research and actually look up the part numbers.

I did this swap on my 3.5" hfm equipped M3 and my stock sized OBDI sensor from my current S52 E30, and it worked just fine. I just wanted to double check.

[DREWHALL]

Your car looks angry.

[nando]

More airflow my man! An engine is basically an air pump, so being slightly intuitive, getting more air in would yield power gains......

M3PO - There would be a tune for the bigger housing. I am going to do some research and actually look up the part numbers.

I did this swap on my 3.5" hfm equipped M3 and my stock sized OBDI sensor from my current S52 E30, and it worked just fine. I just wanted to double check.

or more placebo effect..