Gain 24+ HP* for 2015 Chevy Silverado & GMC Sierra 2500 & 3500

The 2015 Chevrolet Silverado 2500 HD
A free-flowing HDPE intake tube helps keep engine air cooler


The 57-3087 intake system features a free-flowing, high-density polyethylene intake tube, which is engineered to provide a smooth path for airflow and a higher volume of air to the engine. The 57-3087 also incorporates a steel heat shield, which helps protect the air filter and intake air from high temperatures within the engine bay.

“Great fit and notice horsepower improvement.” – Larry from Washington [Part No. 57-3034]


High-density polyethylene (HDPE) has a very high strength-to-density ratio, as well as the ability to withstand extremely high temperatures—making it an excellent choice for the environment in the engine bay. HDPE can also be molded into custom shapes, allowing it to be adapted for specialized tubing designs.


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

A performance air filter helps protect your engine from contaminants


The High-Flow Air Filter™ included in the 57-3087 intake kit is oversized with a conical shape, providing a greater surface area and allowing for a service interval of up to 100,000 miles between cleanings (under normal highway driving conditions). High-Flow Air Filters feature an oiled, layered design. When your filter does need to be cleaned, you can use the K&N Recharger® Kit (99-5000 or 99-5050) to quickly and easily restore your filter’s performance. Each K&N intake (and filter!) is designed to last for the life of your vehicle.


The K&N 57-3087 intake system is engineered to incorporate factory mounting points and the factory mass air sensor. Installation can typically be completed in 90 minutes or less, and requires only simple hand tools. Detailed instructions are included in your kit.

Engineered to fit:

  • 2015 Chevrolet Silverado 2500 HD 6.6L, All Models
  • 2015 Chevrolet Silverado 3500 HD 6.6L, All Models
  • 2015 GMC Sierra 2500 HD 6.6L, All Models
  • 2015 GMC Sierra 3500 HD 6.6L, All Models


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.

“Outstanding and a very awesome product.” – David from Indiana [Part No. 57-2554]


K&N performance air intake systems come with a horsepower guarantee. During dynamometer testing, the 57-3087 provided an estimated power increase of 24.09-horsepower and 29.62 lb./ft. of torque*. 

“Love it, was super easy to install and makes big difference around the 3-4 thousand range.” – Shawn from Canada [Part No. 57-2575]

Join the millions of customers who trust K&N to help them boost performance and protection in their vehicles!

Legal in all 50 states.

*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.