Hmm, I didn't realize bbk made 76mm mafs, of course I never checked if they did either. If you are going to get a tune down the road if you go with a h/c/i or s/c I'm pretty sure they can make whatever maf work with the cobra computer. Usually, you want a maf that is the same size or bigger than the tb. As far as the A9L being more aggressive than the Cobra I have no idea, I don't know too much about that computer.