The Banks Ram-Air intake system ditches the traditional restrictive flat paper filter and baffled stock intake tube with a high flow conical element with a smooth flowing intake duct that is easy to maintain. Having the filter fully enclosed not only keeps power-robbing engine heat away, but it also prevents dirt and dust from clogging the filter prematurely, this is a Jeep after all so you're going to get dirty every once and a while. The Ram-Airs smooth tapered design maximizes airflow by eliminating restrictions, resonators, and the plastic induction muffler in the OEM intake tract. Its smooth tapered shape directs cool dry air at higher velocity into the engine. This is possible thanks to its large oval-shaped 6.5" x 4.8" opening. Cold dry air, is denser air, and air density makes power. With its oversized filter element, smooth intake track, and large 3" outlet, you can extract extra power and sound out of your Jeep, safely and reliably. Banks temperature resistant Cross-Linked Polyethylene (XLPE) air box rejects heat soak better than aluminum or the restrictive OEM design which can trap heat in pockets. Heat robs power, and the Banks Ram-Air design keeps heat out by acting as a barrier between your hot engine bay and your intake system, while simultaneously ramming more air into your engine. Available both as an oiled or dry filter variation, the Banks Big-Ass Filter offers 627 square inches of filtering surface area and flows 82% more CFM through it than stock. This large surface area also extends the duration between filter changes as smaller competitive filters will begin to clog with dirt and debris.