Originally Posted by Jordan Y.
Actually they say aftermarket intakes screw up the airflow to the MAF in a lot of the newer cars. I've not spent enough time on those boards to know if it's true, but I know that it's something people say happens to WRXs, STis, Evos, SRT-4s, etc.
When we installed the injen intake on a friends evo it ran perfectly fine. I guess its just on a car to car basis.
Put the stock intake back on and see what happens.