S&B COLD AIR INTAKE FOR 03-08 DODGE RAM 2500 3500 5.7L OILED COTTON CLEANABLE REDMaximum Performance Our cold air intake for the 2003 2008 Dodge Ram 2500 3500 3. 7L was engineered to minimize air restriction with a custom enclosure that protects the Filter from engine heat and dirt. This intake flows 46 percent better than stock. Protect Your Engine This kit 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