Banks Power 06-10 Chevy 6.6L (All) Techni-Cooler SystemThicker 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. Everything about Banks Intercooler is bigger, including the core area, which has 25% more flow volume. Increases air density for more continuous power. Stock has one plastic end tank, Techni Cooler provides two durable, all aluminum end