Banks Power Intercooler Upgrade (2006-2010 GM HD 6.6 Diesel)Thicker core with 25 percent more flow volume. Two large, sturdy all aluminum end tanks versus Stock has one plastic end tank. For even better airflow and faster turbos spool up add the 25936 Boost Tube Upgrade Kit 50 State Compliant CARB E. O. D 161 90 Key Features High efficiency custom machined durable cast end tanks Cooler EGTs, more MPG and constant duty power Improves Power, Durability and Fuel Economy Packs cool, dense air into the cylinders