What MAF's are compatible?

[sacse30]

Fair enough. Thanks for all the input gents.

[CorvallisBMW]

Fuck. I totally meant to type AFM when I posted that.

I know, just had to call you out on it :)

[5Toes]

M30 AFM is popular mod I know..

[sacse30]

But if it's so popular it has to have a purpose. Everyone continues to talk about it as if it's a must do and be tits to have but there has been little response about the actual perks/gains from doing it.