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It's MAF or MAF-less. MAF is Mass Air Flow, so there's only one F.
MAF-less is unroadworthy so they can give you a pretty yellow sticker for your windscreen and then you have to get the MAF put back on to pass a RWC. Plus an unroadworthy car is not covered by insurance.
I got a MAF-less and am just hoping not to crash or have my engine checked by the cops
You don't get as good fuel economy with mafless setups, each to their own.