The Best New Enclosed Air Box Intake for 2019-2020 Chevy Silverados & GMC Sierras

K&N has recently begun releasing enclosed air box intakes, designed specifically to help protect the air filter element in your Silverado or Sierra from heat, dust, dirt, and moisture. The air box lid allows for quick and easy access to the filter without tools.

If you’ve been searching for the best enclosed air box cold air intake for your vehicle, look no further than the 63-3117. Designed specifically for 2019-2020 Chevrolet Silverado & GMC Sierra 1500 4.3L V6 models using the most advanced computer-aided design and 3D modeling, the K&N® 63-3117 cold air intake system offers a guaranteed increase in horsepower and torque—estimated at +16.61 HP**. Increase your vehicle’s power in less than an hour in the garage*, using only simple hand tools that you probably already own.

Every K&N product is designed using cutting-edge technology for top-quality performance. K&N released its first cold air intake design in 1992, and has been perfecting the process of intake development ever since.

• Guaranteed to increase horsepower and torque
• Enclosed air box helps protect the filter from heat in the engine bay
• Roto-molded HDPE intake tube paired with oversized oiled cotton air filter
• Engineered to provide high airflow and exceptional filtration
• Filter only requires cleaning every 100,000 miles under normal highway driving conditions
• Typical installation can be completed in 60 minutes or less with simple hand tools
• 10-Year/Million Mile Limited Warranty™
• Will not void vehicle warranty

K&N® performance air intake systems come with a horsepower guarantee. During dynamometer testing, the 63-3117 provided an estimated power increase of 16.61-horsepower and 18.54 lb./ft. of torque**. What would you do with all that extra HP?

“This is in my opinion the best product on the market for the money. I am extremely impressed with the ease of installation and then the noticeable performance increase after the products installation. Would most definitely re-purchase in the future.” – William from North Carolina [Part No. 63-3082]

The K&N® 63-3117 system is engineered to incorporate factory mounting points and the factory mass air sensor. Installation can typically be completed in 60 minutes or less, and requires only simple hand tools.

Detailed instructions are included in your kit, and installation instructional videos are available on our website and YouTube channel for many applications. View the product page for the most up-to-date vehicle compatibility information.

• 2020 Chevrolet Silverado 1500 4.3L V6 Gas
• 2020 Chevrolet Silverado 1500 4.3L V6 Gas
• 2020 GMC Sierra 1500 4.3L V6 Gas
• 2020 GMC Sierra 1500 4.3L V6 Gas
• 2019 Chevrolet Silverado 1500 4.3L V6 Gas
• 2019 Chevrolet Silverado 1500 4.3L V6 Gas
• 2019 GMC Sierra 1500 4.3L V6 Gas
• 2019 GMC Sierra 1500 4.3L V6 Gas

“This item is a simple, clean, and easy install. Took about 30 min. Instructions are clear and understandable. No complaints here and I do love K&N's reputation. Thank you.” – Eddie from Georgia [Part No. 63-3082]

The included intake tube is engineered to flow a high volume of air, and an oiled High-Flow Air Filter™ (also included in the kit) helps increase airflow to your engine—while simultaneously providing exceptional protection from contaminants. The oversized filter shape allows for up to 100,000 miles between cleanings (under normal highway driving conditions). When it does need to be cleaned, you can use a K&N Recharger® Kit to quickly and easily restore your filter’s performance. Each intake and filter is designed to last for the life of your vehicle.

“The installation of the Intake Kit was very simple and completed in less than an hour and a half. The performance of my 2015 GMC Sierra is so much better now than it was with the stock air intake and my gas mileage has improved. Purchasing this Performance Intake Kit was worth every penny.” – Robert from Georgia [Part No. 63-3082]

Since engine combustion is most efficient in an oxygen-rich environment, keeping engine air cooler often significantly increases engine combustion efficiency. The 63-3117 system features a roto-molded HDPE intake tube designed to keep airflow to the throttle body smooth and oxygen-dense.

Factory intake systems often feature intake tubing with tight bends, baffles, and other obstacles that can slow airflow and muffle engine noise—unlike K&N® intake systems, which are designed to give your engine a more satisfying growl on acceleration, but return to quiet once at speed.

“Easy to install. Love the new growl it has now (not over the top but just right). The acceleration & shifting is much improved and I've noticed a little gain in the MPGs in the first 2 tanks.” – Bob from Illinois [Part No. 63-3082]

Each intake system comes with a 10-Year/Million Mile Limited Warranty. Furthermore, using a K&N replacement air intake system will not void your factory warranty; in the U.S., manufacturers must provide evidence that an aftermarket part is the cause of a necessary repair in order to void or deny warranty coverage. The Consumer Products Warranty Act of 1975 (also known as the Magnuson-Moss Warranty Act) protects consumers’ rights to their warranty coverage.

“Fast shipping. Good product. Great price. Easy installation. Better gas mileage on the first tank. Would refer to a friend.” – Bob from Ohio [Part No. 63-1561]

Legal in 49 states. Not legal for sale or use in California on any pollution controlled motor vehicle.

*K&N intake systems can typically be installed in less than 60 minutes.

**Horsepower gains vary among products and applications, but each K&N performance air intake system is designed to increase airflow efficiency for specific vehicles and their engines. Each kit undergoes significant testing to help ensure that the filter and intake tube are engineered to deliver large increases in airflow and horsepower. Please visit individual product pages to view horsepower estimates for your specific vehicle.