K&N 57-3034 Cold Air Intake 01-04 GM 6.6L Duramax AFE-53-10003R The upgraded core has more

The upgraded core has more fins per inch with heavy-duty tubes to maximize cooling efficiency in your truck

Ensure your getting the most out of your performance build with this performance pushrod set

Fuel is then heated by the 300 watt heating element as the fuel is entering the FASS System

The Techni-Cooler Intercooler system is a perfect example of the power of Banks

Compatible with synthetic ropes up to 1/2" in diameter

K&N 57-3034 Cold Air Intake 01-04 GM 6.6L Duramax AFE-53-10003R The upgraded core has moreReplacing the restrictive, stock airbox on your 2001 2004 Duramax is probably the easiest upgrade you can do to increase power, throttle response, and fuel economy. Why is the stock airbox so restrictive you may ask? The physical size and media of the air filter limits the amount of airflow that can physically move through it and to the turbo. A high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your