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USD 2473 2473 2783
Part #:

HSP LLY Deluxe Max Air Flow Bundle

2004.5-2005 GM 6.6L Duramax LLY
Part #:
FROM 2473

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Ensure that the air intake system in your 2004.5-2005 GM 6.6L Duramax LLY is performing at the highest level possible when you add the HSP LLY Deluxe Max Air Flow Bundle. Engineered to improve airflow, the Deluxe Max Air Flow Bundle has a 4” Intake Tube and promotes airflow. The HSP signature Heat Shield Box blocks out warm and only permits cool air to enter the intake system. The Deluxe Max Air Flow Bundle has 3” mandrel bent Hot and Cold Side Tubes that combine with the HSP Max Flow Y-bridge and Turbo Mouthpiece. HSP’s 2” Up Pipe is included in the Deluxe Max Air Flow Bundle and is constructed from .120” wall tubing. The Deluxe Max Air Flow Bundle also includes HSP’s Replacement Cooling Tank. Proudly made in the USA, the Deluxe Max Air Flow Bundle comes with 5 layer silicon boots and multiple color options.

  • Made In The USA
  • Improves Air Flow
  • Multiple Color Options
  • Replaces Underperforming Components

Vehicle Applications

2004.5 GMC 6.6L LLY Duramax
2004.5 Chevy 6.6L LLY Duramax
2005 GMC 6.6L LLY Duramax
2005 Chevy 6.6L LLY Duramax

Product Options

284-HSP-W White
284-HSP-SB Satin Black
284-HSP-RAW Raw
284-HSP-O Orange
284-HSP-GB Gloss Black
284-HSP-DG Dark Grey
284-HSP-CR Candy Red
284-HSP-CP Candy Purple
284-HSP-CB Candy Blue
284-HSP-BR Blood Red


  • Manufacturer Name HSP
  • Shipping Weight 50.00 lb.
  • Shipping Length 48 in.
  • Shipping Width 16 in.
  • Shipping Height 16 in.
  • Fuel Type Diesel
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.