Hey all. I just installed a new dual MAF/Intake and a Selin translator. Man, that made a huge difference! Ordered the Z1 upgraded SMIC's and will install when they arrive. My question is: What benefit is gained by a new ECU program that recognizes the dual MAF if you have the Selin? I set it to the "ADD" mode when I installed it. Next question: While I was working on the Z, I deleted the AIV/EGR etc. I have an ASh Spec ECU and I am sure I read that all ECU upgrades eliminate the AIV function.. Car runs great, but if I reprogram, I want to do all in one shot..