Nissan Altima 2004-2006, 63 Series Aircharger High-Density Polyethylene Black Air Intake System by K&N®. Replacement Filter # RC-4180. Use with Pre-Filter # 22-8033PK. Air Filter Height: 6" (152 mm). Air Filter Large End Diameter: 6" (152 mm). Air Filter Material: Cotton Gauze. Air Filter Material: Cotton Gauze. Air Filter Color: Red. Clamp Style: Regular. Estimated HorsePower Gain: 7.39 HP @ 5001 RPM. Intake Pipe Finish: Black. Intake Pipe Material: High-Density Polyethylene. Includes: 4 Clamps, 1 Couplers. Increased airflow and air volume into your engine results in more horsepower and torque, and better acceleration you can feel. This air intake kit is designed to maximize airflow and engine performance. It replaces your OEM air intake system with a free flowing K&N air filter and custom designed air intake tube.
Fitment notes: Not Legal For Sale Or Use In California.
- Guaranteed to increase horsepower and improve acceleration
- Custom designed and engineered for each application
- Works with OEM computer system
- Includes the world's best air filter, the K&N filter
- Easy to install
- Up to 100,000 miles between servicing
- Million Mile limited warranty
There are two problems with your OEM air induction system that cause restriction and reduce airflow. First, airflow is restricted by the size of the filter in the factory airbox. Even a replacement performance air filter can only flow so much when its size is limited. Second, the air path from the filter to the throttle body can be restricted by the OEM intake tube. Together, these two areas of restriction combine to reduce airflow and rob horsepower from your engine.
Luckily, these problems are easily solved with a K&N 63 Series Aircharger Intake Kit. K&N starts by replacing the restrictive airbox and small air filter with the largest size conical shaped high flow K&N air filter that will fit in the engine compartment. The great increase in filter area over stock vastly improves airflow and the capacity to capture and hold dirt. Then K&N replaces the OEM intake tube with a precision designed, rotationally molded tube made from interlaced high density Polyethylene. This tube eliminates air path restrictions to the engine and reduces air intake temperature when compared to similar metal tubes. Intake air temperature is further reduced by a heat shield that isolates the filter from the engine compartment. The reduction in air intake temperatures results in a cooler, denser air intake charge and even more horsepower. All components are mounted and connected with high quality materials such as steel, aluminum, silicon or reinforced nylon, to ensure long life.
K&N uses a dynamometer to design its air intake kits to make the most horsepower possible. But their power figures aren't based on just one vehicle, but rather an average of runs by a number of vehicles. This means repeatable numbers and horsepower claims you can count on.
Every 63 Series Aircharger Intake Kit comes complete with everything necessary for installation, including comprehensive installation instructions. The K&N filter can go up to 100,000 miles before cleaning is required. And the K&N air filter is guaranteed for one million miles.
K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.