Your current MAF is not a restriction and if all you are doing is trying to extend the electronic range of the MAF, the MAF.ia will work really well. It'll be easier to tune with the MAF.ia and the stock meter, and it could even be done really well via mail order this way. The LMAFs work well, but still need adjustments after the base tune is done. With MAF.ias just a few things in the tune are scaled and usually once that is done, nothing else needs to be adjusted at all.
Don
they are two different things. the Mafia is a Maf add-on that lies to the cars computer to make the computer think your Maf has more range than it actually does. you have to connect the Mafia to a Maf, and depending which Maf you use determines what the Max HP your mass air system can support. now the 90mm Lmaf will allow you to make about 450rwhp. you could add the Mafia to the Lmaf and make 550-600rwhp IF you have the mods to get it there.
The maf.ia is good for 800hp mine is on 4 out of 8 on the switch and my car made 415 hp and there is still some voltage to be had at the 4 position.The good thing with the maf.ia you don't have to cut your harness or run a seperate iac like some meters do.