Description The Smeding Diesel Intercooler is a direct fit/ replacement that provides improved airflow and lowers intake air temperatures. It has cast aluminum Bar-and-plate construction end tanks that have been strategically designed for optimal airflow. There are larger than factory outlets that allow increased flow. ToughCore technology provides superior resistance to heat, pressure, fuel, and oil. Part Number: 0309ICBWC Features 3.5" Inlet & Outlet. (Note: Stock inlet/outlets are 3") Bar-and-plate construction with cast aluminum end tanks End tanks are strategically designed for optimal airflow Larger than factory outlets allow increased flow ToughCore technology provides superior resistance to heat, pressure, fuel, and oil Constant-Tension T-bolt Clamps & Silicone Boots Provides improved airflow and lowers intake air temperatures