I'm putting the stock air filter system back on.....

[IRA51]

I think most people freak out at the cost of a filter element ,and make the change over to aftermarket systems thinking they will save money in the long run. the rest do it for the sound and the promise of more power. too bad $25.00 replacement elements don't exist . I change mine every 5000 to 10000 miles and you can see the fuel milage and power take a hit at just about 6000 miles ,half my driveing is off road .