This cold air intake for the 2013-2018 Dodge Ram Cummins 6.7L was engineered to minimize air restriction and flows 54.60% better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. This kit also comes with a massive, highly-efficient air filter which results in better performance and protects your engine. Available in either 8-layer Cotton Cleanable or Dry Extendable media. In extreme heat, high loads, or high altitudes S&B’s swing gate pivots when your truck accelerates to full throttle, opening the ram-air duct mounted behind the grille which releases cooler and less restrictive air to your engine. This intake uses the same motor that drives Ram-Air to activate the swing gate, giving you all the benefits of the stock system, plus much more. Draws air from the wheelwell inlet under normal driving conditions or inclement weather conditions (ice, snow, rain) to protect against the elements.