K&N Universal Air Filter 4-inch Flange for Automotive and Recreational Vehicles – Model RU-4550

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable. Regardless of the angle or offset diameter of an air intake, there is probably a K&N Universal air filter for your equipment. K&N universal air filters are washable and reusable.

• EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to for use- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
• One Year Limited Warranty

The K&N Universal Air Filter model RU-4550 is designed to enhance airflow and improve engine performance across a wide range of applications, including racing cars, motorcycles, generators, snowmobiles, and tractors. Constructed with durable, molded pliable rubber flanges, this filter provides vibration absorption and a secure fit, accommodating various angles and offset diameters. The flanges can be stretched up to 1/16 inch (1.5mm) to ensure a snug fit on different equipment, making it a versatile choice for many types of air intake setups. This filter is washable and reusable, allowing for long-term use and cost savings over disposable options. Its design emphasizes ease of installation, as it is pre-oiled and ready to install right out of the box, providing a quick upgrade to boost engine performance and responsiveness. The product is backed by a one-year limited warranty, demonstrating K&N’s commitment to quality and customer satisfaction. It’s important to note that this filter is not CARB approved and requires acknowledgment of CARB regulations for certain applications. Suitable for models including BMW 525i, Honda Civic, Mini Cooper, and Mazda MX-5 Miata, this universal filter offers a reliable solution for both automotive enthusiasts and fleet operators seeking improved airflow and engine efficiency.

Features:

• Designed for a wide variety of applications including racing, motorcycles, generators, and tractors

• Constructed with ultra-strong molded pliable rubber flanges for vibration absorption and secure attachment

• Stretchable flange design allows up to 1/16 inch (1.5mm) expansion for a custom fit

• Pre-oiled and ready for installation, providing quick performance upgrades

• Washable and reusable for long-term use and cost efficiency

• Backed by a one-year limited warranty for added peace of mind

• Universal fit suitable for various angles and offset diameters

• Not CARB approved; requires acknowledgment of CARB regulations

Fitment:
1999 Honda Civic CX
1999 Honda Civic DX
1999 Honda Civic EX
1999 Honda Civic GX
1999 Honda Civic HX
1999 Honda Civic LX
1999 Honda Civic Si
1999 Honda Civic Value Package
2000 Honda Civic CX
2000 Honda Civic DX
2000 Honda Civic EX
2000 Honda Civic GX
2000 Honda Civic HX
2000 Honda Civic LX
2000 Honda Civic Si
2001 BMW 525i Base
2002 BMW 525i Base
2002 Mini Cooper S
2004 Volkswagen Golf GTI VR6
2009 Mazda MX-5 Miata Grand Touring
2009 Mazda MX-5 Miata Sport
2009 Mazda MX-5 Miata SV
2009 Mazda MX-5 Miata Touring

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1