If you're looking for improved intercooler efficiency and increased performance for your 5.9 Cummins, look no further than the AFE 46-20067 3.5 Inch Cold Side Intercooler Tube. This bolt-on kit is designed to fit your OEM intercooler, and is made from durable powdercoated aluminum tubing for excellent heat resistance and long life. The cold side intercooler tube outflows the stock tube by 20%, providing significant gains in both power and efficiency. So if you're serious about getting the most out of your Cummins, pick up an AFE 46-20067 3.5 Inch Cold Side Intercooler Tube today!