NOTE: Fits all 2004 LLY 6.6L Duramax Diesels and all 2005 LLY Duramax Diesels with the Panel Style Stock Air Filter.
If your 2005 Duramax has the ROUND STYLE filter, you need part number 57-3057.
The 57 Series Generation II air intake, also referred to as an FIPK®, is K&N's ultimate performance product. These performance intakes are designed to increase power by as much as 10%. 57 Series FIPK's are CARB exempt, street legal in all 50 US states, come with a Million Mile Limited Warranty and are guaranteed to increase power. K&N air intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This translates into more power and torque for your vehicle. The filters on these kits are washable and reusable. Most of our air intake systems are relatively easy to install using tools commonly available (see installation instructions). [MORE]
Fits all 2004 LLY 6.6L Duramax Diesels and all 2005 LLY Duramax Diesels with the Panel Style Stock Air Filter.
K&N Part number: 57-3047