HSP Diesel Cold Air Intake Bundle For 2004.5-2007 Chevrolet And GMC LLY / LBZ Duramax
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
Colours and prices as published by HSP Diesel · verified 9/8/2026
Select your truck to continue
Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from HSP Diesel
HSP 2004.5-2007 Chevrolet / GMC Cold Air Intake Bundle
Part Number: 081-HSP
The HSP Cold Air Intake Bundle is the perfect first step toward improving airflow and performance in your 2004.5-2007 Duramax-equipped Chevrolet and GMC truck. With upgraded components and a design that focuses on power and efficiency, this bundle helps your truck breathe easy and run strong.
What Is the HSP Cold Air Intake Bundle?
This bundle combines two major performance upgrades: a Cold Air Intake and a VGT Intake Mouthpiece. These components replace restrictive factory parts that limit airflow and hinder your engines potential. With improved construction and design, this kit gives you a noticeable bump in power and engine response.
Cold Air Intake
Built from hand-fabricated, high-grade metal and featuring a 4.5" mandrel-bent intake tube, HSPs Cold Air Intake reduces turbulence and increases airflow. The included heat shield box protects the system from underhood heat, ensuring cooler and denser air reaches the turbo. On the dyno, this intake has shown gains of up to 20 HP and 58 lb-ft of torque. Cooler intake air means more power and better overall engine performance.
VGT Intake Mouthpiece
Our Max Airflow Mouthpiece for smooth transitions and precise fitment, the VGT Intake Mouthpiece optimizes airflow between the intake and turbo. It uses a high-strength O-ring seal at the turbo inlet to prevent leaks and ensure maximum efficiency. This piece is essential for unlocking the full potential of your Cold Air Intake and improving throttle response and turbo spool-up.
Special
Notes:
• Includes the option to reroute your factory PCV system and remove the resonator box (PCV reroute sold separately, see part 003-1-HSP).
• When used on LLY-equipped Duramax trucks, the MAF must be rescaled for proper operation.
What's Included:
• 1x 4.5" Cold Air Intake Tube (HSP-IN-150-1)
• 1x 4.5" Hole Heatshield Box (HSP-IN-748)
• 1x Heatshield Box Lid (HSP-IN-746)
• 1x Cast Turbo Mouthpiece(HSP-IN-216-1)
• 1x 4.5" Filter (RFB-413-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)
• 2x 4.5" T-Bolt Clamp (RFB-435-RFAB)
• 1x 4.5" x 4" Straight Boot (RFB-444-RFAB)
• 1x Turbo Inlet O-Ring (RFB-628-RFAB)
Fitment:
• LLY: 2004.5-2005 (VIN Code 2)
• LBZ: 2006-2007 (VIN Code 2 or D)
How to verify: The 8th character of your VIN identifies the engine. The 10th character indicates the model year.
Overview:
• Powder-coated parts clean up the engine bay
• Cooler, denser air intake
• Improved airflow and reduced turbulence
• Mandrel-bent tubing for consistency
• High-strength silicone boots
• Seals better and performs longer than stock
• Enhanced engine sound and turbo spool
Our Warranty
HSP "NO BS" Limited Lifetime Warranty
We stand behind every product that leaves our facility. For years, HSP has gone above and beyond for our customers—even without a formal warranty policy. Now, were making it official. You can clearly review our "No BS" warranty, its process, and the coverage guidelines at the link below.
View the HSP Limited Lifetime Warranty
HSP 2004.5-2007 Chevrolet / GMC Cold Air Intake Bundle
Part Number: 081-HSP
The HSP Cold Air Intake Bundle is the perfect first step toward improving airflow and performance in your 2004.5-2007 Duramax-equipped Chevrolet and GMC truck. With upgraded components and a design that focuses on power and efficiency, this bundle helps your truck breathe easy and run strong.
What Is the HSP Cold Air Intake Bundle?
This bundle combines two major performance upgrades: a Cold Air Intake and a VGT Intake Mouthpiece. These components replace restrictive factory parts that limit airflow and hinder your engines potential. With improved construction and design, this kit gives you a noticeable bump in power and engine response.
Cold Air Intake
Built from hand-fabricated, high-grade metal and featuring a 4.5" mandrel-bent intake tube, HSPs Cold Air Intake reduces turbulence and increases airflow. The included heat shield box protects the system from underhood heat, ensuring cooler and denser air reaches the turbo. On the dyno, this intake has shown gains of up to 20 HP and 58 lb-ft of torque. Cooler intake air means more power and better overall engine performance.
VGT Intake Mouthpiece
Our Max Airflow Mouthpiece for smooth transitions and precise fitment, the VGT Intake Mouthpiece optimizes airflow between the intake and turbo. It uses a high-strength O-ring seal at the turbo inlet to prevent leaks and ensure maximum efficiency. This piece is essential for unlocking the full potential of your Cold Air Intake and improving throttle response and turbo spool-up.
Special
Notes:
• Includes the option to reroute your factory PCV system and remove the resonator box (PCV reroute sold separately, see part 003-1-HSP).
• When used on LLY-equipped Duramax trucks, the MAF must be rescaled for proper operation.
What's Included:
• 1x 4.5" Cold Air Intake Tube (HSP-IN-150-1)
• 1x 4.5" Hole Heatshield Box (HSP-IN-748)
• 1x Heatshield Box Lid (HSP-IN-746)
• 1x Cast Turbo Mouthpiece(HSP-IN-216-1)
• 1x 4.5" Filter (RFB-413-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)
• 2x 4.5" T-Bolt Clamp (RFB-435-RFAB)
• 1x 4.5" x 4" Straight Boot (RFB-444-RFAB)
• 1x Turbo Inlet O-Ring (RFB-628-RFAB)
Fitment:
• LLY: 2004.5-2005 (VIN Code 2)
• LBZ: 2006-2007 (VIN Code 2 or D)
How to verify: The 8th character of your VIN identifies the engine. The 10th character indicates the model year.
Overview:
• Powder-coated parts clean up the engine bay
• Cooler, denser air intake
• Improved airflow and reduced turbulence
• Mandrel-bent tubing for consistency
• High-strength silicone boots
• Seals better and performs longer than stock
• Enhanced engine sound and turbo spool
Our Warranty
HSP "NO BS" Limited Lifetime Warranty
We stand behind every product that leaves our facility. For years, HSP has gone above and beyond for our customers—even without a formal warranty policy. Now, were making it official. You can clearly review our "No BS" warranty, its process, and the coverage guidelines at the link below.
View the HSP Limited Lifetime Warranty
HSP offers a limited lifetime warranty to the original purchaser on eligible HSP products. Underhood powder coating has separate two-year limited coverage. Non-HSP brands follow their own manufacturer warranties. Discontinued products and customer/installer damage are excluded. Claim authorization is required; customer pays inbound shipping for ordinary claims.
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
HSP Diesel warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what HSP Diesel offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- HSP states returns must be postmarked within 30 days of purchase, new and unused with original tags and packaging, with an approved RMA. A 15% restocking fee and customer-paid return shipping apply. Special orders, non-HSP dropship products, apparel, used items and custom colors are excluded. Based on what HSP Diesel offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- HSP Diesel
- Warranty duration
- Product-specific duration not stated; see supplier terms
- 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.