Banks Power Boost Tube Upgrade Kit 2007-2009 Ram 6.7L Cummins Banks PowerAre you running the new bad ass Banks Monster Ram for the 6. 7L Cummins? Banks boost tubes are larger than the factory pipe and designed to work with the stock elbow or new Banks Monster Ram (3. 5 Inch or 4 Inch) which will improve airflow, and allow the turbocharger to spool up faster. Banks hot and cold side tubes have 40 percent greater flow area than stock tubes. Produced from high quality aluminized steel, our tubes are mandrel bent for constant