Next, the filter is attached to a rotationally molded tube made from interlaced, high-density polyethylene. This process allows K&N to precisely shape the tube in order to reduce turbulence and accelerate air flow into the engine. This is why some of our tubes have unique shapes that are specifically engineered for each application. Finally, the tube is connected to the engine with adapters made from high-strength materials, such as silicon and reinforced nylon, ensuring long life.

K&N 57 Series Generation II Air Intake Kits are built for many different vehicles and represent a dramatic improvement over a K&N OE replacement filter alone. These kits use only nonmetallic, rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube. Restriction can exist between an air filter and the engine, reducing the benefit of a K&N air filter. The weakest link in the air flow chain robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the engine. K&N air intake kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into power.

• Engineered to specific vehicle design
• Provides an estimated gain of 8.01 hp 
• Easy to install, usually in 90 minutes or less
• Lasts up to 100,000 miles before service is required (depending on driving conditions)
• Million-mile limited warranty
• Replaces OEM filter and air box
• Air filter is washable and reusable
• Works with OEM computer systems
• Designed to use factory holes and mounting points whenever possible
• Most are CARB exempt and street legal in all 50 states

Provide your vehicle with improved performance by adding an easy to maintain air intake system from K&N. With easy installation and state of the art design elements, the K&N air intake system is a perfect upgrade for any vehicle.