Photo 1 of K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 22HP: Compatible 6.6L, V8, 2005-2007 Chevy/GMC Heavy Duty (Silverado, Sierra, 2500, 3500),57-3057

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Photo 1 of K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 22HP: Compatible 6.6L, V8, 2005-2007 Chevy/GMC Heavy Duty (Silverado, Sierra, 2500, 3500),57-3057Photo 2 of K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 22HP: Compatible 6.6L, V8, 2005-2007 Chevy/GMC Heavy Duty (Silverado, Sierra, 2500, 3500),57-3057