See how easy it is to install the Spectre 9951. The 9951 air intake kit uses a large diameter aluminum intake tube, an application specific heat shield and an oversized reusable Spectre Filter, and is designed to add horsepower and torque to the 2004-2014 Nissan Titan, 2005-2014 Armada, and 2005-2010 Infiniti QX56 5.6L.