Air Intake Kit For 2004-2005 6.6L Duramax LLY GMC/Silverado 2500/3500 HD | SPELAB LML --4 1/4" length from the

--4 1/4" length from the bottom edge of the head to the outside of the middle tubes

This material provides excellent cooling performance without negatively affecting vehicle performance

Lowers Exhaust Temperatures – Improves engine cooling and reduces heat stress

Take Your Vehicle from Mild to Wild

Air Intake Kit For 2004-2005 6.6L Duramax LLY GMC/Silverado 2500/3500 HD | SPELAB LML --4 1/4" length from thetab Description SPELAB GMC Sierra Chevy Silverado Cold Air Intake Kit w Filter For 2004 2005 6. 6L Duramax LLY 2500 3500 HD A Cold Air Intake System positions the filter outside the engine compartment to ensure the coolest possible air inlet temperatures. Cooler air contains more oxygen, leading to a more powerful explosion in the combustion chamber, resulting in increased horsepower and torque. However, this is just one aspect of the power equation.