And you aren't going to pick up any power from a filter swap alone. The restriction in the stock Jeep is the stock air-intake system, not the filter. However, if you've got a super-modified mud ...

Here are the aftermarket air filters we tested in this '04 1/2 Dodge Ram 2500 equipped with a manual transmission. Clockwise from the top left are: K&N, Volant, AFE, Airaid, True Flow, and S&B.

On May 17, in Dublin, the Rolling Stones will resume the No Filter European Tour which they started last September in Hamburg. With them, a host of Jeep vehicles will tour six countries in three ...