Is the v.1/2 MAF the same as the v.3/4 MAF or, if not, are they interchangeable?

Are v.2's 'green labels' (like v.1's are)... and are v.3/4's the 'orange labels'?

Is there a diameter difference between v.1's and/or v.2's, compared with v.3/4 ones

 

The v1/2 is scaled different to v3/4 so is not a straight swap ,can be fitted but requires re-scaling in your ecu .

Mark

 

Cheers.

For the record are the v.3/4 ones the 'orange labels'?