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SKU: 77-3103KC | UPC: 024844387240
K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System
Upgrade your 2020-2021 Chevrolet Silverado 2500 HD/3500 HD or GMC Sierra 2500 HD/3500 HD with the K&N 77-3103KC Performance Air Intake System designed for the 6.6L V8 L8T engine. This mandrel-bent aluminum cold air intake replaces the factory air box and tube to deliver more airflow for increased horsepower and torque. Paired with a washable high-flow oiled cotton filter it provides dyno-proven gains of up to 17 HP at 5159 RPM while maintaining strong filtration.
Key Features
- High-Flow Air Filter: Washable reusable oiled cotton media cleans every 100000 miles under highway conditions for long-term performance and low maintenance
- Mandrel-Bent Aluminum Tube: Smooth seamless design increases airflow volume and velocity over stock intake for noticeable power gains
- Horsepower and Torque Gains: Dyno-tested guarantee delivers real-world improvements in throttle response acceleration and towing power
- Lifetime Limited Warranty: Backed by K&N no-hassle coverage protecting your investment for the life of your vehicle
- Easy Bolt-On Fit: Direct replacement for factory components installs in 60 minutes or less using basic hand tools
Product Notes
- Replaces OEM air filter and intake tube without cutting or permanent modifications
- Filter service interval extends to 100000 miles with K&N cleaning kit for minimal upkeep
- Ships in protective box measuring 25in x 14in x 10in with 11lb shipping weight
Installation Notes
- Professional installation recommended.
- Complete in under 60 minutes using screwdriver pliers and sockets included in most kits
- Retains factory heat shield and sensors for plug-and-play compatibility
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2021 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2021 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2021 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2021 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2021 | Chevrolet | Silverado 2500 HD | WT |
| 2020-2021 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2021 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2021 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2021 | GMC | Sierra 2500 HD | Denali |
| 2020-2021 | GMC | Sierra 2500 HD | SLE |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2021 | GMC | Sierra 3500 HD | Denali |
| 2020-2021 | GMC | Sierra 3500 HD | SLE |
| 2020-2021 | GMC | Sierra 3500 HD | SLT |
Why Choose K&N?
- Over 50 years engineering high-performance air filters and intakes trusted by millions
- Dyno-tested systems deliver verified power gains for trucks and heavy-duty applications
- Precision mandrel bending and premium materials ensure durable fit and maximum airflow
Frequently Asked Questions
-
Q: Does this fit my 2020 Silverado 2500 HD 6.6L gas engine?
A: Yes the 77-3103KC fits all 2020-2021 Silverado 2500/3500 HD and Sierra 2500/3500 HD models with 6.6L V8 L8T gasoline engine across listed submodels -
Q: What materials are used in the intake tube and filter?
A: Features mandrel-bent aluminum intake tube for strength and airflow plus oversized high-flow filter with oiled cotton gauze media for filtration and reusability -
Q: What warranty and vehicle impact apply?
A: Includes K&N Lifetime Limited Warranty and installs without voiding your vehicle manufacturer warranty per Magnuson-Moss Act
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Original K&N box 25in L x 14in W x 10in H
- Weight: 9.5 lbs product 11 lbs shipping
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