Cool Charge Intercooler Duct, MA-16-CC3ICDThe Pettit Racing Intercooler Duct is available in two styles: Cool Charge 3 style and the Cool Charge 2 style. The Cool Charge 2 style Intercooler Duct works with most GReddy Style Intercoolers and is smaller than the Cool Charge 3 version. The Cool Charge 3 is the correct duct for our current intercooler. This bigger duct provides optimal cooling to the Pettit Racing Intercooler. PLEASE SPECIFY WHETHER YOU NEED THE CC2 OR CC3 VERSION. PART # MA 16