HSP Diesel
HSP Diesel Cold Air Intake for 2007.5-2010 Chevrolet and GMC LMM Duramax
MPN: 402-HSP
HSP Cold Air Intake for 2007.5-2010 Chevrolet / GMC Duramax LMM Part Number: 402-HSP 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 perfect standalone upgrade or an excellent addition to exis…
$465
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Warranty
Warranty Information Pending
Warranty information has not yet been provided for this product. Contact FullSpecDiesel for help locating the applicable manufacturer or supplier warranty.
View complete warrantyHSP Cold Air Intake for 2007.5-2010 Chevrolet / GMC Duramax LMM Part Number: 402-HSP 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 perfect standalone upgrade or an excellent addition to existing modifications. Why Choose the HSP Cold Air Intake for the LMM Duramax? The factory intake on the LMM Duramax struggles to meet the airflow demands of the engine. While the LMM is a powerful and capable engine, it needs proper airflow to truly shine. Factory filters are also prone to failure, which can lead to a cascade of issues. Clean, cool, and consistent airflow is one of the most critical factors in maintaining performance and longevity. What Sets the HSP Cold Air Intake Apart? The HSP Cold Air Intake features a 4.5" mandrel-bent tube that provides a consistent, free-flowing path for air. This drastically improves performance compared to stock and many aftermarket alternatives. Combined with HSP Diesels signature heatshield box, this system prevents hot engine air from entering the intake stream—ensuring cooler, denser air for better combustion. On average, users report gains of 20 horsepower and 58 lb-ft of torque on the dyno. Whats Included 1x 4.5" Cold Air Intake Tube (HSP-IN-150-2) 1x 4.5" Hole Heatshield Box (HSP-IN-748) 1x Heatshield Box Lid (HSP-IN-746) 1x 4.5" Filter (RFB-413-RFAB) 1x 4" T-Bolt Clamp (RFB-424-RFAB) 1x 4.5" T-Bolt Clamp (RFB-435-RFAB) 1x 4.5" - 4" Straight Boot (RFB-495-RFAB) 4x 1/8" Aluminum Rivet (RFB-098-RFAB) 3x 10-32 x 3/8" Button Head Screws (RFB-099-RFAB) 16x Trim Lock (RFB-411-RFAB) 1x Heatshield Box Lid Backer Plate (RFB-746-BP-RFAB) 2x M4x.7x10mm Bolt (RFB-901-RFAB) Fitment LMM: 2007.5-2010 (VIN Code 6) Note: The 8th character of the VIN indicates the engine code, and the 10th character represents the model year. Overview Increased performance and faster spool-up 4.5" upgraded mandrel-bent tubing Powder coating options for a custom engine bay appearance Heat deflection box with an airtight seal CNC machined sensor blocks for a perfect fit Premium filters for optimal airflow and filtration Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP, we believe in our products and stand firmly behind every single one that leaves our facility. For years, weve supported our customers with flexible, top-tier service—even without a formal policy. Now, weve made it official. Our No BS Warranty outlines the process and your protections clearly and simply. Click here to read the full HSP Warranty
HSP Cold Air Intake for 2007.5-2010 Chevrolet / GMC Duramax LMM Part Number: 402-HSP 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 perfect standalone upgrade or an excellent addition to existing modifications. Why Choose the HSP Cold Air Intake for the LMM Duramax? The factory intake on the LMM Duramax struggles to meet the airflow demands of the engine. While the LMM is a powerful and capable engine, it needs proper airflow to truly shine. Factory filters are also prone to failure, which can lead to a cascade of issues. Clean, cool, and consistent airflow is one of the most critical factors in maintaining performance and longevity. What Sets the HSP Cold Air Intake Apart? The HSP Cold Air Intake features a 4.5" mandrel-bent tube that provides a consistent, free-flowing path for air. This drastically improves performance compared to stock and many aftermarket alternatives. Combined with HSP Diesels signature heatshield box, this system prevents hot engine air from entering the intake stream—ensuring cooler, denser air for better combustion. On average, users report gains of 20 horsepower and 58 lb-ft of torque on the dyno. Whats Included 1x 4.5" Cold Air Intake Tube (HSP-IN-150-2) 1x 4.5" Hole Heatshield Box (HSP-IN-748) 1x Heatshield Box Lid (HSP-IN-746) 1x 4.5" Filter (RFB-413-RFAB) 1x 4" T-Bolt Clamp (RFB-424-RFAB) 1x 4.5" T-Bolt Clamp (RFB-435-RFAB) 1x 4.5" - 4" Straight Boot (RFB-495-RFAB) 4x 1/8" Aluminum Rivet (RFB-098-RFAB) 3x 10-32 x 3/8" Button Head Screws (RFB-099-RFAB) 16x Trim Lock (RFB-411-RFAB) 1x Heatshield Box Lid Backer Plate (RFB-746-BP-RFAB) 2x M4x.7x10mm Bolt (RFB-901-RFAB) Fitment LMM: 2007.5-2010 (VIN Code 6) Note: The 8th character of the VIN indicates the engine code, and the 10th character represents the model year. Overview Increased performance and faster spool-up 4.5" upgraded mandrel-bent tubing Powder coating options for a custom engine bay appearance Heat deflection box with an airtight seal CNC machined sensor blocks for a perfect fit Premium filters for optimal airflow and filtration Our Warranty HSP NO BS LIMITED LIFETIME WARRANTY At HSP, we believe in our products and stand firmly behind every single one that leaves our facility. For years, weve supported our customers with flexible, top-tier service—even without a formal policy. Now, weve made it official. Our No BS Warranty outlines the process and your protections clearly and simply. Click here to read the full HSP Warranty
Product conditions
- Return eligibility
- Returnable within 30 days of confirmed delivery, in original condition, with an approved RMA
- Return window
- 30 days from confirmed delivery
- Restocking fee
- No restocking fee
- Return shipping
- Customer pays return shipping on voluntary returns
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Cancellation is only possible before the supplier order is submitted
- Warranty provider
- Warranty Information Pending
- Warranty duration
- Pending verification
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- HSP Diesel
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.