Looking for a way to boost engine function? Look no farther than your air intake system. One of the major components in great engine efficiency and power is the air flow that reaches the engine itself. Internal combustion engines require the presence of oxygen in order to take care of business and function properly - meaning that one of the best things you can do for any engine is supply it with oxygen steadily and readily. With a GMC K&N Cold Air Intake, you’ll be able to manage the supply of air that hits your engine. How does it work? Simple. Look for great features like wide pipe diameters (to allow a large quantity of air through at one time), mandrel-bent tubing (to avoid tight bends that slow the flow of air), and smooth pipe interiors (to avoid air resistance). Together, these features help to keep a large volume of air moving steadily. Additionally, you want a GMC Truck Cold Air Intake that is formulated to properly insulate your air source from your engine: cool air has a higher concentration of oxygen than does warm, meaning that you’ll get more bang for your buck by supplying your engine with cool air than you will with warm. Having the right cold air intake in your 1999 - 2006 GMC Truck can make a huge difference - so take a look at your options today. Motor enthusiasts deserve terrific support and help when purchasing dependable parts for their car or truck. For our valued customers, we run a 24/7 sales support bureau to support all your needs. If you spot a lower price elsewhere, call us - we will beat any legitimate auto part price.