2020-2025
2015-2019
2007-2014
2001-2006
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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K&N Series 77 High Flow Performance Cold Air Intake (01-04 6.6L Duramax Sierra 2500 HD)Find parts that fit my vehicle
Item HG49485
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Our Price
$399.99 each
Ship to: 43215
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Series 77 High Flow Performance Cold Air Intake
- Increases Horsepower and Torque
- Improves Engine Performance
- Enhances Throttle Response
- Maximum Airflow
- Durable Construction
- Two-Hour Installation
- Ten-Year or Million-Mile Limited Warranty
- Fits 2001-2004 6.6L Duramax Sierra 2500 HD Models
| Brand | K&N |
| Cold Air Intake Type | Cold Air Intake |
| Tuning Requirements | No Tune Required |
| Cold Air Intake Tube Material | Aluminum |
| Cold Air Intake Filter Type | Oiled |
Description
Unleash Your Engine's Potential. The K&N Series 77 High Flow Performance Cold Air Intake is meticulously engineered to unlock your 2001-2004 6.6L Duramax Sierra 2500 HD's true potential. By replacing the restrictive factory air intake system with this high-flow design, you're not just upgrading a component – you're optimizing your engine's breathing capabilities.
Experience the Thrill. At the heart of the K&N Series 77 High Flow Performance Cold Air Intake lies a large, high-flow air filter designed to maximize airflow and minimize restrictions. This meticulously crafted filter boasts a significantly larger surface area compared to the factory air filter, allowing your engine to inhale a substantially greater volume of oxygen-rich air.
Accelerate with Authority. The K&N Series 77 High Flow Performance Cold Air Intake not only increases horsepower but also significantly enhances your Sierra's responsiveness. By dramatically reducing the resistance to airflow, this high-flow intake system delivers a more immediate and powerful surge of power when you step on the gas. Experience the thrill of improved throttle response and lightning-fast acceleration as your Duramax responds instantly to your commands.
Installation. Putting this K&N Series 77 High Flow Performance Cold Air Intake on your 6.6L Duramax Sierra 2500 HD takes 2 hours to install.
Warranty. There is a 10-year or million-mile limited warranty on this product.
Application. The K&N Series 77 High Flow Performance Cold Air Intake fits 2001-2004 6.6L Duramax Sierra 2500 HD models.
Fitment:
- 2001 GMC Sierra 2500
- 2002 GMC Sierra 2500
- 2003 GMC Sierra 2500
- 2004 GMC Sierra 2500
K&N 77-3034KP
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) High-Flow Air Filter
- (1) Intake Tube
- Hardware
- Instructional Manual
4.8
Reviews of K&N Intake Products (500+)
Reviews of K&N Intake products have an average rating of 4.8 out of 5
Questions & Answers
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Will It Fit My Sierra 2500
- 6.6L V8 Duramax - 01, 02, 03, 04
