2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Cold Air Intakes

The more efficiently your 6.6L Duramax LML engine can breathe, the more power it can deliver for your 2004.5-2005 GM 2500HD/3500HD. Enhance airflow and improve both power and fuel efficiency with a new aftermarket cold air intake. As a bonus, many cold air intakes enhance your diesel's aggressive engine sound. Pair your cold air intake with an upgraded Exhaust System for even greater performance!  GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY
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Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
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Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Wehrli Custom Fab

Wehrli 100301 4 inch Cold Air Intake Kit with Air Box and Intake Horn | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

From $775.03
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Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
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Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Wehrli Custom Fab

Wehrli 100191 4 inch Cold Air Intake Kit with Air Box | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

From $509.25
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Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Banks Power

Banks 42135 Ram-Air Cold Air Intake System with Oiled Filter | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

$449
Injen EVO7009 Evolution Cold Air Intake | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Injen EVO7009 Evolution Cold Air Intake | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Injen EVO7009 Evolution Cold Air Intake | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Injen EVO7009 Evolution Cold Air Intake | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Injen

Injen EVO7009 Evolution Cold Air Intake | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

$319.95
Airaid 201-229 Cold Air Intake System w/ Dry Filter | 2004-2005 GM 2500HD/3500HD 6.6L Duramax LLY
Airaid 201-229 Cold Air Intake System w/ Dry Filter | 2004-2005 GM 2500HD/3500HD 6.6L Duramax LLY

Airaid

Airaid 201-229 Cold Air Intake System w/ Dry Filter | 2004-2005 GM 2500HD/3500HD 6.6L Duramax LLY

$349.99
K&N 77-3047KP Cold Air Intake kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
K&N 77-3047KP Cold Air Intake kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

K&N Filters

K&N 77-3047KP Cold Air Intake kit | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

$399.99
K&N 57-3047 Performance Air Intake Kit | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
K&N 57-3047 Performance Air Intake Kit | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

K&N Filters

K&N 57-3047 Performance Air Intake Kit | 2004-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

$349.99

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2004.5-2005 6.6L Silverado & Sierra 2500HD/3500HD

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