hmmf .. the tube the MAF sensor is in, is barely any bigger then the stock one. like i think its about 1/8 of an inch bigger diameter. but it makes sense, bigger diameter tube means that you have more air coming by at the same air speed . compared to stock. the MAF doesn't know. hmmf. what i need is a restrictor plate
or i could glue / epoxy something into the tube. hell i could just cover the inside with a layer of epoxy / glue , let it dry. and then the inner diameter will be reduced .
(that will be a weird project)