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HSP High Flow Cold Air Intake For 2007.5-2010 GMC Chevy 6.6L LMM Duramax Diesel

Availability: This item is made to order, potential lead times of 15-18 business days may occur
Pricing: $470.25

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The 402-HSP is best known as the HSP Cold Air Intake for the 2007.5-2010 LMM Duramax Equipped Chevrolet and GMC trucks. This Cold Air Intake system is a great add-on to existing modifications or even just a standalone mod that you won’t ever add anything to.  The factory intake on the LMM Duramax is less than ideal when it comes to keeping up with the demand that the engine can require. The LMM Duramax is an extremely capable engine when given the correct support. We see all too often failures of filters that cause a cascading series of failures. Having clean, cool, and consistent air to go into the engine is one of the if not the most important factors of engine performance.

The first major change that the HSP Cold Air Intake makes is the size. Using a 4 ½” mandrel-bent tubing provides an extremely consistent and free-flowing path that enables the HSP Cold Air Intake to outflow others on the market. Using HSP Diesel’s heatshield we are able to prevent hot engine air from entering the HSP Cold Air Intake and pull in more cool dense air. On average HSP Diesel saw a 20 Horsepower and 58 pounds of torque increase in the dyno. Using HSP Cold Air Intake you have the ability to make more power and have cleaner air entering the turbocharge to prolong its life.


Color Choices:

  • Raw
  • Ink Black
  • Illusion Blueberry
  • Illusion Purple
  • Illusion Cherry
  • Flag Red
  • Kingsport Grey
  • M&M Orange
  • Silk Satin Black
  • Polar White



  • Increased Performance and spool up
  • Upgraded high strength silicone boots
  • Powder coating option to dress up the engine bay
  • CNC Machined Sensor blocks for a perfect fit and seal
  • Premium filters for optimum filtration and performance
  • Heat deflection box with an airtight seal to prevent hot engine temps from entering the filter



  • 2007.5-2010 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LMM
  • 2007.5-2010 GMC Sierra 2500HD/3500HD 6.6L Duramax LMM



  • Please note your color choice during checkout
  • At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything & anything that our customers had issues with, but we didn’t have a “set in stone” warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level. Below you will be able to clearly read & understand our “No BS” warranty, its process, and the guidelines in which to follow.


  • 402-HSP-X
  • 402-HSP-X
  • HSP Diesel
  • This item is made to order, potential lead times of 15-18 business days may occur
  • New

Shipping Information

  • Item Requires Shipping
  • 22.0 lbs.
  • W30.0000” x H17.0000” x L16.0000”
  • FREE Ground Shipping

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