Hyundai is very stupid. People in this forum are reporting 2 MPG and estimating 15 HP gains with the K&N air filter. According to edmunds.com the all wheel drive LX is EPA rated at 19 MPG city and 23 MPG highway. If they installed the K&N filter at the factory, and hasd the EPA run the test with the K&N filter they could have been rated at 21 MPG city and 25 MPG highway. They also could list the 2.7 engine at 196 HP rather than a puny 181. Horsepower ratings sell cars. So would 2 MPG additional. Why is Hyundai so stupid?
