K&N 20-21 Chevy / GMC 2500/3500 6.6L V8 Performance Air Intake System

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