Early to late 325e air flow compatibility

[np75]

I was at the wrecking yard today and I noticed that the early 325e's had a stamped sheetmetal airbox with a larger air filter. I was wondering if anyone knows if the early air flow meter would be compatible with the later 325e ECU.

[rs4pro3]

yes the two eta AFM's are interchangable. the only difference is the early model has a round bolt on flange for the metal airbox, where as the 86 and up's don't have the flange and the plastic box bolts right to the AFM.

[np75]

Thanks for the info

Nic

[porsche gt1]

88 has a different ECU as it is motronic 1.1 not motronic. Afm's I believe are all interchangable as long as it came from an E30.