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Fulfillment From Multiple U.S. Warehouses
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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Fleece Performance
Fleece Performance High Flow LB7 Intake Horn for 2001-2004 GM Duramax (6.6L)
$99.75
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD/3500 models (6.6L LB7 Duramax).
Maximize your LB7's airflow with the Fleece Performance High Flow Intake Horn. This cast aluminum upgrade replaces the restrictive factory inlet, reducing turbulence and allowing your turbocharger to breathe more efficiently. In back-to-back testing, this simple bolt-on modification delivered a proven increase of 15 horsepower, making it one of the most cost-effective performance upgrades available for the early Duramax platform.
Built for durability and precision fitment, this kit includes a new mounting gasket to ensure a leak-free seal against the turbocharger inlet. It is designed to work with factory mounting points for a straightforward installation process.
- Manufacturer Part Number: FPE-INTAKEHORN
- Material: Cast aluminum
- Horsepower Gain: +15 hp (dyno verified)
- Engine Compatibility: 6.6L LB7 Duramax
- Includes: High flow intake horn and replacement gasket
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2004 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LT |
| 2004 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2004 | Chevrolet | Silverado 3500 | Base |
| 2001-2004 | Chevrolet | Silverado 3500 | LS |
| 2001-2004 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2002-2004 | GMC | Sierra 2500 HD | Base |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2004 | GMC | Sierra 2500 HD | SLE |
| 2001-2004 | GMC | Sierra 2500 HD | SLT |
| 2003-2004 | GMC | Sierra 2500 HD | WT |
| 2002-2004 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2004 | GMC | Sierra 3500 | SLE |
| 2001-2004 | GMC | Sierra 3500 | SLT |
| 2004 | GMC | Sierra 3500 | WT |
Choose your Location
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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Fleece Performance High Flow LB7 Intake Horn for 2001-2004 GM Duramax (6.6L)
$99.75
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Share:
$99.75
$99.75
$99.75
Fits select 2001-2004 Chevrolet Silverado and GMC Sierra 2500 HD/3500 models (6.6L LB7 Duramax).
Maximize your LB7's airflow with the Fleece Performance High Flow Intake Horn. This cast aluminum upgrade replaces the restrictive factory inlet, reducing turbulence and allowing your turbocharger to breathe more efficiently. In back-to-back testing, this simple bolt-on modification delivered a proven increase of 15 horsepower, making it one of the most cost-effective performance upgrades available for the early Duramax platform.
Built for durability and precision fitment, this kit includes a new mounting gasket to ensure a leak-free seal against the turbocharger inlet. It is designed to work with factory mounting points for a straightforward installation process.
- Manufacturer Part Number: FPE-INTAKEHORN
- Material: Cast aluminum
- Horsepower Gain: +15 hp (dyno verified)
- Engine Compatibility: 6.6L LB7 Duramax
- Includes: High flow intake horn and replacement gasket
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2004 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2004 | Chevrolet | Silverado 2500 HD | LT |
| 2004 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2004 | Chevrolet | Silverado 3500 | Base |
| 2001-2004 | Chevrolet | Silverado 3500 | LS |
| 2001-2004 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2002-2004 | GMC | Sierra 2500 HD | Base |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2004 | GMC | Sierra 2500 HD | SLE |
| 2001-2004 | GMC | Sierra 2500 HD | SLT |
| 2003-2004 | GMC | Sierra 2500 HD | WT |
| 2002-2004 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2004 | GMC | Sierra 3500 | SLE |
| 2001-2004 | GMC | Sierra 3500 | SLT |
| 2004 | GMC | Sierra 3500 | WT |
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