I don't mean they should advertise K&N, I mean they should install it or a similar filter (high airflow - low filtration) in order to get the extra horsepower and the 2 extra miles per gallon that people have reported here. If it's sold on the car, they can have the EPA test MPG with it. They could imitate the K&N, or buy it from them and call it a Hyundai filter.

If the SF got 2 MPG more and had much better power then they would be big winners. And the filter might only cost them a little bit more. Actually all they need is an inferior filter, so it should cost less, not more.

If less filtering gives you a big power increase plus 2 MPG, then they must be stupid not to do it.

The Hyundai filter does not look like cheap crap. It looks good actually. They could make the filtering media a lot thinner if they wanted to.