XDP carries a great inventory of high-quality Air Intake Systems that provide your 2004.5-2005 Chevy/GMC 6.6L LLY Duramax with improved airflow. You can choose between an oiled or dry air filter for your air intake system. Both the oiled and dry filter are an upgrade over the factory air filter originally equipped on your vehicle. Factory intake systems typically have tight, restrictive angles that limit and restrict airflow. Aftermarket Air Intake Systems eliminate these chokepoints and replace them with non-restrictive designs that ensure your engine is getting as much air as possible. 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. 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!