K&N® 57 SERIES HIGH FLOW PERFORMANCE COLD AIR INTAKE KITSMaximum performance—more power, greater efficiency, increased torque and improved throttle response Superior filtering for consistent horsepower gains in all conditions Real world tests on a Grand Cherokee produced consistent 26.3 hp gains at rear wheels Exclusive K&N® million mile warranty K&N® Performance Cold Air Intake Kits, with high-flow element and components, replace restrictive factory air filter. These Fuel Injection Performance Kits (FIPKs) provide virtually unrestricted airflow—26% more airflow than stock. Dyno tests show a torque increase of no less than 23 ft./lbs. through towing ranges. That means better acceleration, instant power, easier lane changes and passing.....even when towing. K&N® Performance Cold Air Intake Kits include washable, reusable K&N® air filter.