Looking to upgrade your 2001-2005 Duramax intercooler? Check out the CSF 6007 OE Replacement Intercooler. This upgraded OE design is a drop-in installation, making it easy to upgrade your existing intercooler. There are several construction styles available, including plastic/aluminum and all aluminum. Standard tube & fin cores and heavy duty bar & plate cores are both available. The OEM & Custom manufacturing program means that you can find the perfect intercooler for your needs. Don't wait, upgrade your Duramax today with the CSF 6007 OE Replacement Intercooler!