So that means that this counts for the z32 mafs also, so yes busted13 you should use 2 in 7 out for z32 maf.Allthough it would be different for a KA maf. I cant seem to find the stock sensor type for KA mafs :Sr34 gtr wrote:7in 7out is correct for the stock CA maf. For the rb20 maf, you are going to need to look in the apexi manual and find out what the stock setting for the r32gtst with the rb20 is. Then you use that number in, and 7 out.