S&B COLD AIR INTAKE FOR 2013-2018 DODGE RAM CUMMINS 6.7LMAXIMUM PERFORMANCE Our 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. THE SOUND OF PERFORMANCE. The huge air filter and tube produce a more aggressive sound than stock. Check out how it sounds from inside and outside the vehicle. BUILT IN SWING GATE In