XDP carries a great inventory of high-quality Air Intake Systems that provide your 2001-2004 Chevy/GMC 6.6L LB7 Duramax with improved airflow. Shop today at XDP and get a cold air intake for your vehicle. XDP offers many of the top intake system brands in the industry like AFE, S&B, Banks, AIRAID, K&N, and more! Air boxes and heat shields are integral components on many cold air intake systems. These features help to prevent warm air from entering the intake system. As a result, you get cooler and more dense air into your engine for better power and performance. An upgraded air filter comes with aftermarket air intake systems and replaces the underperforming factory filter. Many systems enable you to choose between an oiled or dry filter based on your preference. Aftermarket Air Intake Systems eliminate the restrictive angles found on OEM intake systems resulting in increased airflow to your engine.