Air Intake Kit For Nissan XTerra/ Pathfinder/ Frontier (2005-2015) with 4.0L EngineStop letting your VQ40DE breathe through a restrictive plastic straw and finally give your Nissan the airflow it needs for better throttle response and a deeper, more aggressive engine note. Performance High Flow Air Intake Kit for Nissan Frontier, Xterra, and Pathfinder (VQ40DE 4. 0L V6) If you own a second gen Frontier, Xterra, or Pathfinder, you know the VQ40DE is a legendary workhorse, but the factory air box is a major bottleneck. Designed for