Cold-air intake with large lifetime filter, enclosed housing and large tubing doubles stock flow, increasing power and fuel economy. Banks Ram-Air Superiority. 4.0L 6-CYL: 1997-06 Wrangler TJ. Banks Ram-Air Intake System replaces the factory's flat panel filter with a large conical filter that provides maximum high-flow filtration. The Ram-Air's opening is over twice as big as stock's, and without the 90-Degree detours that choke airflow and kill power. The huge inlet, enclosed housing and much larger tubing reduce restrictions, dramatically improving airflow to the cylinders. The results are impressive: Banks Ram-Air Intake more than doubles the factory intake's airflow, improving the Jeep's power and fuel economy. And Banks Ram-Air is designed to accommodate engine movement, which prevents component damage for reliable service life. Key Features: Enclosed housing keeps out hot, power-robbing engine air. Outflows the stock intake by a staggering 116%. Inhales cooler outside air for more power & MPG. Extends service life & requires fewer cleanings. Giant filter maximizes high-flow filtration. Accommodates engine movement. Prevents component damage. 5-year Limited Warranty. OILED Air Filter Element. Helps engine run cooler