Closed Box Air Intake (12540) 2008-2019 Nissan Frontier, 08-17 Xterra, 08-13 Pathfinder 4.0L V6Description Vehicle Fitment & Emissions Installation Instructions Volant air intake systems utilize a high velocity venturi filter adapter which provides a smooth transition through the MAF sensor into the intake tube for a much needed airflow improvement over the factory rubber tubing and resonator box. Volant's Cool Air box is larger than the factory unit and incorporates a larger opening to collect a higher volume of colder ambient air. This model