Optimize your induction system with the Mishimoto Performance Air Filter, engineered to provide superior filtration and high-volume airflow for performance street, track, and off-road applications. This universal filter features an integrated powerstack—a velocity stack style inlet—designed to smooth incoming airflow and reduce turbulence for a more efficient intake charge.

Built for long-term durability, the Mishimoto Performance Air Filter is fully cleanable and reusable, serving as a permanent replacement for restrictive, disposable paper filters. Each unit is manufactured in the USA and includes a high-quality stainless steel worm-gear clamp for a secure, vibration-resistant installation on your intake piping or turbocharger inlet.

• Inlet Diameter: 3.86 inches
• Filter Length: 7.2 inches
• Integrated powerstack for improved airflow dynamics
• Fully cleanable and reusable filter media
• Made in the USA
• Includes high-quality mounting clamp
• Mishimoto Lifetime Warranty
• Manufacturer Part Number: MMAF-38672S

Upgrade your induction system with the Mishimoto Performance Air Filter (MMAF-3007), engineered to provide optimal airflow and high-efficiency filtration. This universal-fit filter features a 3-inch inlet and a 7-inch length, making it a versatile solution for custom intakes on street, track, or trail applications. Designed for longevity, the filter media is fully cleanable and reusable, providing a lifetime of service without the need for frequent replacements.

Constructed with durability in mind, this filter is built to withstand high-performance environments while maintaining structural integrity. Each unit is made in the USA and includes a high-quality worm-gear clamp to ensure a secure, leak-free installation onto your intake piping or turbocharger inlet.

• Part Number: MMAF-3007
• Inlet Diameter: 3.0 in
• Filter Length: 7.0 in
• Maintenance: Fully cleanable and reusable
• Manufacturing: Made in the USA
• Included: High-quality installation clamp
• Warranty: Mishimoto Lifetime Warranty

Enhance your engine's induction system with the Mishimoto Performance Air Filter (MMAF-3006). Engineered to provide a balance of high-volume airflow and superior filtration, this oiled filter protects internal engine components while reducing intake restriction. The robust construction is designed to withstand the rigors of street driving, track use, or off-road trails.

This filter features a cleanable and reusable media, allowing for a lifetime of service. It arrives ready for installation with a high-quality worm-gear clamp to ensure a secure fit to your 3-inch intake pipe or turbo inlet. Proudly made in the USA, this performance filter is backed by the Mishimoto Lifetime Warranty.

• Inlet Diameter: 3.0 in (76mm)
• Filter Length: 6.0 in (152mm)
• Filter Media: Oiled, cleanable, and reusable cotton gauze
• Construction: Durable molded rubber base and end cap with reinforced mesh
• Hardware included: High-quality installation clamp
• Origin: Made in the USA
• Manufacturer Part Number: MMAF-3006
• Warranty: Mishimoto Lifetime Warranty

The Mishimoto Performance Air Filter (MMAF-3005S) is engineered to provide superior filtration and high-volume airflow for performance street, track, and trail applications. This universal oiled filter is fully cleanable and reusable, providing a lifetime of consistent performance without the waste of disposable filters. Its robust construction ensures durability under high-boost or heavy-vacuum conditions.

Equipped with an integrated powerstack, this filter smoothes incoming air to minimize turbulence and optimize velocity. The 3-inch inlet diameter allows for easy installation on standard intake piping using the included high-quality worm-gear clamp. Made in the USA, this filter is built to handle the demands of forced induction or naturally aspirated setups while maintaining strict filtration standards.

• Inlet Diameter: 3in (76mm)
• Filter Length: 5in (127mm)
• Oiled cotton gauze media for maximum flow and filtration
• Integrated powerstack design for smoother airflow
• Fully cleanable and reusable for extended service life
• Includes high-quality installation clamp
• Made in the USA
• Mishimoto Lifetime Warranty
• MPN: MMAF-3005S

The Mishimoto Performance Air Filter is engineered to improve induction efficiency and protect internal engine components across street, track, and off-road applications. Utilizing a cleanable and reusable oiled media, this filter provides a sustainable alternative to disposable paper elements, maintaining high airflow capacity for the life of your vehicle. The construction is designed to resist collapsing under high-vacuum conditions, and the included worm-gear clamp ensures a secure, leak-free connection to your intake pipe.

• Inlet Diameter: 2.75in
• Filter Length: 7in
• Filter Media: Cleanable, reusable oiled cotton gauze
• Construction: Robust design suitable for various environments
• Manufacturing: Made in the USA
• Included: Heavy-duty mounting clamp
• Warranty: Mishimoto Lifetime Warranty
• Part Number: MMAF-2757

This universal-fit Mishimoto Performance Air Filter is engineered to provide superior air filtration and optimized airflow for custom intake systems or replacement applications. Featuring an oiled filter media that can be cleaned and reused, this filter is built for a lifetime of service across street, track, and trail environments. Each filter is constructed with a robust internal structure to maintain its shape under high vacuum and includes a high-quality clamp for a secure installation.

Designed and manufactured in the USA, this filter replaces restrictive factory paper elements or worn universal filters with a high-flow alternative. Its durable build ensures consistent performance in demanding conditions, backed by the Mishimoto Lifetime Warranty.

• Inlet Diameter: 2.75 inches (70mm)
• Filter Length: 6 inches (152mm)
• Filter Color: Red
• Filter Type: Oiled (Cleanable and Reusable)
• Construction: Robust internal mesh with high-quality mounting clamp
• Origin: Made in the USA
• Manufacturer Part Number: MMAF-2756

Fits 2005 Ford Focus ZX3, ZX4, ZX5, and ZXW.

The K&N XStream Universal Air Filter (RX-4990) is engineered to maximize surface area and airflow by incorporating a pleated filter within the top of the unit. This unique XStream design provides significantly more filtration area than standard closed-top filters, allowing for higher air volume and extended service intervals. It is built for racing and high-performance environments where engine protection and unrestricted intake are vital.

Constructed with ultra-strong, molded pliable rubber flanges, this clamp-on filter effectively absorbs engine vibration for a secure attachment. The flange material allows for up to 1/16 inch (1.5mm) of stretch to accommodate in-between intake tube sizes. This filter features K&N's signature washable cotton gauze media, making it a sustainable, reusable performance upgrade.

• Manufacturer Part Number: RX-4990
• Flange Inside Diameter: 3 in (76 mm)
• Base Outside Diameter: 6 in (152 mm)
• Top Outside Diameter: 5 in (127 mm)
• Filter Height: 5.563 in (141 mm)
• Flange Type: Centered
• Filter Material: Washable Cotton Gauze
• Top Style: Filtered XStream Top

Fits select 1998-2011 Acura RDX, Chrysler 300M, Dodge Intrepid, Ford Ranger, Mazda B3000, and Mercury Cougar.

The K&N X-Stream Universal Air Filter is engineered to maximize airflow by replacing the traditional solid top cap with a pleated filter element. This unique design significantly increases the total filtration surface area, allowing for higher air volume and extended service intervals even in demanding racing environments. Built with a focus on durability, the filter features molded pliable rubber flanges that absorb engine vibration for a secure, leak-free seal. The flange can be stretched up to 1/16 inch (1.5mm) to accommodate varying intake tube sizes.

• Manufacturer Part Number: RX-4730
• Flange Inside Diameter: 3 in (76 mm)
• Base Outside Diameter: 6 in (152 mm)
• Top Outside Diameter: 5 in (127 mm)
• Height: 6.5 in (165 mm)
• Flange Length: 1.125 in (29 mm)
• Integrated X-Stream filter top for increased surface area
• Washable and reusable cotton gauze filtration media
• Clamp-on design with included stainless steel hardware

The K&N X-Stream Universal Air Filter (RX-4140) is engineered for high-demand racing and performance applications where maximum airflow and filtration surface area are critical. Featuring the innovative X-Stream filter top, this unit incorporates additional filter media into the top of the canister, providing a larger surface area for increased airflow and extended service intervals compared to traditional solid-top filters.

Built for durability in harsh environments, this round clamp-on filter uses ultra-strong, molded pliable rubber flanges that absorb engine vibration for a secure attachment. The flange is designed with enough flexibility to stretch up to 1/16 inch (1.5mm), allowing it to fit between standard intake tube sizes. This reusable filter is fully washable, maintaining high filtration efficiency across its lifespan.

• Manufacturer Part Number: RX-4140
• Flange Inside Diameter: 3.531 in (90 mm)
• Outside Diameter: 4 in (102 mm)
• Height: 5.969 in (152 mm)
• Top Style: X-Stream Filter Top for increased surface area
• Flange Type: Centered, pliable rubber
• Media Material: Washable cotton gauze

The K&N RX-4130-1 X-Stream Universal Clamp-On Air Filter is designed for high-performance applications where airflow and filtration area are paramount. Unlike standard filters with solid tops, the X-Stream series features a pleated filter media integrated into the lid, significantly increasing the total surface area to provide higher air flow and extended service intervals.

Built for demanding environments, this filter uses K&N's signature washable cotton gauze media to provide exceptional protection without sacrificing power. The base is constructed with ultra-strong, molded pliable rubber flanges that absorb engine vibration for a secure mount. These flanges are engineered with enough flexibility to stretch up to 1/16-inch (1.5mm) to accommodate slightly varied intake tube diameters.

• Part Number: RX-4130-1
• Flange Inside Diameter: 3.5 in (89 mm)
• Outside Diameter: 4 in (102 mm)
• Height: 5.75 in (146 mm)
• Filter Top: X-Stream pleated filter lid for increased surface area
• Media Type: Oiled cotton gauze, washable and reusable
• Construction: Pliable rubber flange with stainless steel worm gear clamp

The K&N XStream Universal Air Filter (RX-3800) is engineered to maximize surface area and airflow in high-performance and racing environments. By incorporating a pleated filter directly into the top of the assembly, the XStream design provides significantly more filtration media than a standard solid-top filter, extending service intervals and reducing air restriction.

Built for demanding use, this filter features ultra-strong molded pliable rubber flanges designed to absorb engine vibration for a secure, leak-free seal. The flexible flange material allows for up to 1/16 inch (1.5mm) of stretch to accommodate slight variations in intake tube sizing. Like all K&N performance filters, the XStream media is fully washable and reusable, offering a long-term solution for custom intake systems.

• Manufacturer Part Number: RX-3800
• Flange Inside Diameter: 2.438 in (62 mm)
• Base Outside Diameter: 4.5 in (114 mm)
• Top Outside Diameter: 4 in (102 mm)
• Height: 6.563 in (167 mm)
• Flange Length: 0.625 in (16 mm)
• Media Material: Cotton Gauze
• Design: Integrated XStream Top for increased airflow capacity

Fits 2003-2006 Dodge Viper SRT-10.

The K&N X-Stream Universal Air Filter RX-2820 is engineered for high-performance applications where maximum airflow and filtration are critical. Featuring the signature X-Stream filter top, this design adds functional surface area to the lid, pulling in more air than a standard closed-top filter. Built with four layers of pleated cotton media, it provides reliable engine protection while remaining fully washable and reusable.

Each filter is constructed with ultra-strong, pliable rubber flanges that absorb engine vibration for a secure fit. The flange can be stretched up to 1/16 of an inch (1.5mm) to accommodate slightly varied intake pipe diameters. Designed for longevity and performance, the RX-2820 is a versatile solution for custom intakes and specific OE replacements.

• Manufacturer Part Number: RX-2820
• Filter Type: Round Straight Clamp-On
• Flange Inside Diameter: 3 in (76 mm)
• Outside Diameter: 5 in (127 mm)
• Height: 7 in (178 mm)
• Top Style: X-Stream filtered top lid
• Media Material: Washable oiled cotton gauze
• Warranty: 1-Year Limited Warranty

The K&N RU-9920 Universal Clamp-on Air Filter is engineered for versatile performance across a wide range of custom applications, including racing vehicles, generators, snowmobiles, and tractors. This filter features an integrated vent and is built with ultra-strong, molded pliable rubber flanges designed to absorb engine vibration while ensuring a secure, leak-free attachment.

Constructed with K&N’s signature high-flow media, this filter is fully washable and reusable, offering a sustainable alternative to disposable paper filters. The mounting flange is designed with enough flexibility to stretch up to 1/16 in (1.5mm), allowing it to fit securely between standard sizes for a precise seal on your intake or carburetor.

• Manufacturer Part Number: RU-9920
• Flange Inside Diameter: 2 in (51 mm)
• Base Outside Diameter: 5-3/16 in (132 mm)
• Top Outside Diameter: 3-1/2 in (89 mm)
• Height: 3-11/16 in (94 mm)
• Integrated Vent: Yes
• Material: Pliable molded rubber flange and cotton gauze media
• Warranty: 1-Year Limited Warranty

Fits select 2007-2018 Ford Fiesta, Honda Fit, and Mini Cooper models.

This K&N RU-9630 Universal Tapered Air Filter is engineered for performance applications ranging from custom intake systems to specialized engine equipment. Built with ultra-strong, molded pliable rubber flanges, this filter is designed to absorb engine vibration while providing a secure, leak-free attachment. The flange material is engineered to stretch up to 1/16-inch (1.5mm), allowing it to accommodate slightly varied intake pipe diameters for a precise fit.

The filter features K&N's signature high-flow pleated cotton media, which is fully washable and reusable. This design provides excellent filtration efficiency while maintaining low restriction for improved airflow. Whether you are replacing a worn element on a performance intake or building a custom setup, this filter delivers the durability and serviceability required for demanding environments.

• Flange Inside Diameter: 2.5 in (64 mm)
• Base Outside Diameter: 4.5 in (114 mm)
• Top Outside Diameter: 3.5 in (89 mm)
• Filter Height: 5 in (127 mm)
• Flange Offset: 0 in (0 mm)
• Construction: Pliable molded rubber flange and pleated cotton media
• Serviceability: Washable and reusable
• Manufacturer Part Number: RU-9630
• Warranty: 1-Year Limited Warranty

The K&N Universal Clamp-On Air Filter RU-9410 is engineered for versatile performance across a wide range of custom induction applications, including racing vehicles, generators, snowmobiles, and tractors. Designed for high airflow and superior filtration, this filter provides a reliable solution regardless of intake angle or offset diameter.

Each filter is constructed with ultra-strong, molded pliable rubber flanges that absorb engine vibration for a more secure connection. The high-quality rubber flange is designed to stretch up to 1/16-inch (1.5mm) to accommodate minor variations in intake tube sizing. Fully washable and reusable, this filter is a long-term performance component for custom builds and specialized equipment.

• Manufacturer Part Number: RU-9410
• Flange Inside Diameter: 3 in (76 mm)
• Base Outside Diameter: 4.5 in (114 mm)
• Top Outside Diameter: 3.5 in (89 mm)
• Filter Height: 4.375 in (111 mm)
• Flange Length: 0.625 in (16 mm)
• Media Material: Oiled Cotton Gauze
• Features: Washable, reusable, and vibration-absorbing construction
• Warranty: 1-Year Limited Warranty

The K&N RU-5321 Universal Clamp-On Air Filter is engineered for versatility and performance across a wide range of custom applications, from racing vehicles and snowmobiles to generators and industrial equipment. This high-flow filter provides a reliable solution for intakes where a standard factory airbox is no longer used, offering superior filtration and airflow capacity.

• Durable Construction: Built with ultra-strong, molded pliable rubber flanges that absorb engine vibration and ensure a secure, leak-free attachment.
• Flexible Fitment: The flange material is designed to be stretched up to 1/16 of an inch (1.5mm) to accommodate in-between sizes and unique intake tube diameters.
• Washable & Reusable: Features K&N's signature oiled cotton gauze media, allowing the filter to be cleaned and re-serviced for extended life.
• Versatile Application: Suitable for any equipment where the intake angle or offset diameter requires a clamp-on high-performance filter.

Specifications:
Manufacturer Part Number: RU-5321
Flange Stretch: 0.0625 in (1.5mm)
Warranty: 1-Year Limited Warranty

The K&N RU-5302 Universal High-Flow Air Filter is engineered for versatile performance across a wide range of custom applications, including racing vehicles, generators, snowmobiles, and tractors. Designed to increase airflow while maintaining filtration efficiency, this filter is a durable alternative to restrictive disposable elements.

Built with ultra-strong, molded pliable rubber flanges, this filter is designed to absorb vibration and ensure a secure attachment. The flange material provides flexibility, allowing it to be stretched up to 1/16-inch (1.5mm) to fit precisely between standard intake sizes. As a washable and reusable component, it offers long-term service life for custom intake setups.

• Part Number: RU-5302
• Flange Inside Diameter: 5 in (127 mm)
• Base Outside Diameter: 8.5 in (216 mm)
• Filter Height: 5 in (127 mm)
• Construction: Molded pliable rubber flange with high-flow media
• Maintenance: Washable and reusable
• Warranty: 1-Year Limited Warranty

The K&N RU-5288 Universal Air Filter is a high-performance, clamp-on filtration solution designed for custom intake systems, racing vehicles, and industrial equipment. Utilizing K&N’s legendary oiled cotton media, this filter provides low restriction and high airflow to help engines breathe more efficiently. The pleated design offers a large surface area for extended service intervals even in dusty environments.

Built for durability and ease of installation, the RU-5288 features an ultra-strong, molded pliable rubber flange. This material absorbs engine vibration for a more secure attachment and can be stretched up to 1/16 inch (1.5mm) to fit slightly non-standard intake tube sizes. Because the filter is fully washable and reusable, it represents a long-term alternative to disposable paper filters.

• Manufacturer Part Number: RU-5288
• Flange Inside Diameter: 3 in (76 mm)
• Base Outside Diameter: 6 in (152 mm)
• Top Outside Diameter: 4.625 in (117 mm)
• Filter Height: 3 in (76 mm)
• Flange Type: Centered, molded rubber
• Filter Material: Red oiled cotton gauze
• Construction: Round tapered
• Warranty: 1-Year Limited Warranty

Fits select 2008-2012 Ford F-250/F-350 Super Duty and 2010-2012 Dodge/Ram 2500/3500.

The K&N RU-5283HBK is a high-performance universal clamp-on air filter designed to provide low restriction and increased airflow for demanding truck applications. Utilizing K&N's advanced Dryflow oil-free synthetic media, this filter delivers excellent filtration efficiency without the need for traditional filter oil. The round tapered design and durable rubber flange ensure a secure, airtight fit on custom intakes or as a direct replacement in supported vehicle applications.

Engineered for longevity, this filter is fully washable and reusable. When the media becomes soiled, it can be serviced using K&N synthetic air filter cleaner to restore original performance levels. The black finish and rugged construction make it an ideal choice for enthusiasts looking for a maintenance-friendly filtration solution.

• Manufacturer Part Number: RU-5283HBK
• Filter Type: Dryflow Oil-Free Synthetic
• Shape: Round Tapered
• Flange Inside Diameter: 4.5 in (114 mm)
• Base Outside Diameter: 8 in (203 mm)
• Top Outside Diameter: 6.625 in (168 mm)
• Filter Height: 8 in (203 mm)
• Flange Type: Centered
• Finish: Black

The K&N RU-5179 Universal Clamp-On Air Filter is engineered for high-performance filtration and versatile fitment across a wide range of applications, from racing vehicles and custom intakes to industrial equipment and snowmobiles. This washable and reusable filter features K&N’s signature pleated media, designed to provide high airflow while maintaining engine protection.

Constructed with an ultra-strong, pliable molded rubber flange, this filter is built to absorb engine vibrations for a secure, leak-free attachment. The flexible flange material allows for up to 1/16-inch (1.5mm) of stretch to accommodate varied intake tube diameters between standard sizes. As a genuine K&N product, this filter is designed for a long service life and includes a one-year limited warranty.

• Manufacturer Part Number: RU-5179
• Flange Inside Diameter: 6 in (152 mm)
• Base Outside Diameter: 9 in (229 mm)
• Top Outside Diameter: 6.625 in (168 mm)
• Filter Height: 7.5 in (191 mm)
• Flange Length: 1 in (25 mm)
• Flange Type: Centered
• Filter Material: Cotton Gauze
• Features: Washable, reusable, and vibration-resistant

Fits select 2007-2020 Honda Accord and Toyota Yaris models.

The K&N RU-5174 Universal Round Tapered Air Filter is engineered for custom intake applications, racing vehicles, and various power equipment. It features K&N's signature high-flow pleated media designed to improve airflow while providing superior filtration. The ultra-strong molded pliable rubber flange is built to absorb engine vibration for a secure, leak-free connection. For installation flexibility, the mounting flange can be stretched up to 1/16 of an inch (1.5mm) to fit in-between intake tube sizes.

• Manufacturer Part Number: RU-5174
• Flange Inside Diameter: 2.5 in (64 mm)
• Base Outside Diameter: 6 in (152 mm)
• Top Outside Diameter: 5 in (127 mm)
• Filter Height: 5 in (127 mm)
• Flange Type: Centered
• Construction: Washable and reusable pleated cotton gauze
• Durability: Molded rubber flanges for vibration resistance
• Warranty: 1-Year Limited Warranty

The K&N RU-5173 Universal Clamp-On Air Filter is engineered for versatility and high-flow performance. Featuring a pliable, molded rubber flange, this filter absorbs engine vibration for a secure attachment and can stretch up to 1/16-inch (1.5mm) to accommodate intake tube variations. It is a premium filtration solution for both custom intakes and direct vehicle applications.

Fits select 2007-2020 Ford Expedition, F-150, F-250/F-350 Super Duty, and Lincoln Navigator models.

Constructed with K&N’s signature oil-impregnated cotton gauze media, the RU-5173 provides exceptional airflow while maintaining high filtration efficiency. This filter is fully washable and reusable, designed to last the life of your vehicle with proper maintenance. The included stainless steel worm gear clamp ensures a tight seal against the intake housing.

• Manufacturer Part Number: RU-5173
• Flange Inside Diameter: 6 in (152 mm)
• Base Outside Diameter: 7.5 in (191 mm)
• Top Outside Diameter: 5.875 in (149 mm)
• Height: 6 in (152 mm)
• Flange Length: 1.125 in (29 mm)
• Material: Washable cotton gauze with pliable rubber flange
• Included Hardware: (1) Stainless steel worm gear clamp
• Warranty: 1-Year Limited Warranty

Fits select 2003-2009 Dodge Ram 2500 and 3500 models.

The K&N RU-5171HBK is a high-performance, clamp-on universal air filter designed to provide low restriction and high airflow to your engine. This filter features K&N Dryflow oil-free synthetic media in black, offering excellent filtration and protection without the need for traditional filter oil. Built with a durable rubber flange and base, this round tapered filter is engineered for longevity and can be easily cleaned using K&N synthetic air filter cleaner.

• Product Series: Dryflow Universal Air Filter
• Media Type: Oil-free synthetic (Black)
• Flange Inside Diameter: 4 in (102 mm)
• Base Outside Diameter: 8 in (203 mm)
• Top Outside Diameter: 6.625 in (168 mm)
• Filter Height: 8 in (203 mm)
• Flange Offset: 0 in (0 mm)
• Construction: Round tapered with clamp-on mounting
• Maintenance: Washable and reusable
• Manufacturer Part Number: RU-5171HBK

This universal filter is ideal for custom intake applications or as a replacement for worn-out performance filters on 2003-2009 Dodge Ram heavy-duty trucks. The kit includes the necessary hose clamp for a secure installation to your intake tube or turbo inlet.

Fits select 2016-2020 Cadillac ATS, Honda Accord, and Honda Civic.

K&N Universal X-Stream air filters are engineered for high-performance applications where maximum airflow and filtration are critical. Featuring a unique X-Stream filter top, these units provide additional surface area compared to traditional closed-top filters, significantly improving intake efficiency. The filter is constructed with ultra-strong, molded pliable rubber flanges that absorb engine vibration and ensure a secure, airtight seal. The flange material is designed to stretch up to 1/16 of an inch (1.5mm) to accommodate minor variations in intake tube diameters for a precise fit.

• Washable and reusable oiled cotton gauze filtration media
• X-Stream top design for increased air flow capacity and surface area
• Molded pliable rubber flange for superior vibration resistance
• Clamp-on design for easy installation on custom or OE intake tubes
• Manufacturer Part Number: RU-5163XD

Specifications:

• Flange Inside Diameter: 5 in (127 mm)
• Base Outside Diameter: 6.5 in (165 mm)
• Top Outside Diameter: 4.5 in (114 mm)
• Height: 4.125 in (105 mm)
• Flange Type: Centered
• Warranty: 1-Year Limited Warranty

Fits select 2007-2020 Buick, Cadillac, Ford, Honda, Kia, Subaru, and Toyota models.

The K&N RU-5163 Universal Air Filter is engineered for versatile high-performance applications, providing superior airflow and engine protection. This filter is constructed with ultra-strong, pliable molded rubber flanges that absorb vibration and allow for a secure, airtight seal. The durable rubber material is designed to stretch up to 1/16 of an inch (1.5mm) to accommodate varied intake tube diameters between standard sizes.

This conical filter features K&N's signature washable and reusable filtration media, allowing for long-term use without the waste of disposable paper filters. Whether used in racing, custom automotive builds, or industrial equipment, the RU-5163 delivers consistent performance and reliable filtration.

• Manufacturer Part Number: RU-5163
• Flange Inside Diameter: 5 in (127 mm)
• Base Outside Diameter: 6.5 in (165 mm)
• Top Outside Diameter: 4.5 in (114 mm)
• Filter Height: 4.125 in (105 mm)
• Flange Offset: 0 in (Centered)
• Filter Material: Washable Cotton Gauze
• Warranty: 1-Year Limited Warranty

Fits select 2005-2020 BMW, Chevrolet, Honda, Hyundai, Mitsubishi, Nissan, and Toyota models.

The K&N RU-5147 Universal Air Filter is engineered for versatile performance across a wide range of racing, street, and specialty equipment applications. Built with K&N’s legendary washable and reusable filter media, this clamp-on filter replaces restrictive factory paper elements with a high-flow design intended to improve air intake efficiency and engine protection.

Each filter is constructed with an ultra-strong, molded pliable rubber flange that absorbs engine vibration for a secure, leak-free seal. The rubber mounting flange is designed with enough flexibility to be stretched up to 1/16-inch (1.5mm) to accommodate slightly oversized intake tubes. This round tapered filter is a professional-grade solution for custom cold air intakes or as a high-performance replacement for various vehicle-specific setups.

• Manufacturer Part Number: RU-5147
• Flange Inside Diameter: 5 in (127 mm)
• Base Outside Diameter: 6.5 in (165 mm)
• Top Outside Diameter: 4.5 in (114 mm)
• Height: 5.5 in (140 mm)
• Construction: Pleated cotton media with pliable rubber flange and top
• Maintenance: Washable and reusable
• Warranty: 1-Year Limited Warranty

The K&N RU-5144 Universal Air Filter is engineered for versatility across a wide range of custom applications, including racing vehicles, generators, and specialized equipment. Constructed with ultra-strong, molded pliable rubber flanges, this filter absorbs engine vibration while providing a secure attachment point. The rubber flange is specifically designed to stretch up to 1/16 inch (1.5mm) to accommodate slight variations in intake tube diameters for a precise fit.

As part of K&N's performance line, this tapered round filter features washable and reusable media, eliminating the need for frequent replacements. Its design maximizes surface area to provide high airflow and filtration efficiency in demanding environments.

• Manufacturer Part Number: RU-5144
• Flange Inside Diameter: 2.75 in (70 mm)
• Base Outside Diameter: 4.75 in (121 mm)
• Top Outside Diameter: 4 in (102 mm)
• Filter Height: 8 in (203 mm)
• Material: Pleated cotton media with rubber flanges
• Warranty: 1-Year Limited Warranty

Fits select 2004-2017 Acura, BMW, Cadillac, Chevrolet, Chrysler, Dodge, GMC, Hyundai, Kia, and Pontiac vehicles.

The K&N RU-5138 Universal Air Filter is engineered for high-performance applications where versatility and durability are required. Designed for everything from racing vehicles to industrial equipment, these filters feature ultra-strong molded pliable rubber flanges that absorb engine vibration and provide a secure, leak-free seal. The flange material is flexible enough to be stretched up to 1/16-inch (1.5mm) to accommodate unique intake tube sizes.

• Washable and reusable cotton filtration media for extended service life
• Pliable rubber flange absorbs vibration and provides secure clamping
• High-flow design suitable for various performance and industrial applications
• Flange Inside Diameter: 6 in (152 mm)
• Base Outside Diameter: 7.5 in (191 mm)
• Top Outside Diameter: 4.5 in (114 mm)
• Height: 5 in (127 mm)
• Manufacturer Part Number: RU-5138
• Warranty: 1-Year Limited Warranty

The K&N RU-5135 Universal Clamp-On Air Filter is engineered for high-performance filtration across a wide range of custom applications, including racing vehicles, generators, snowmobiles, and tractors. This filter provides an adaptable solution for intakes requiring specific dimensions and high airflow without sacrificing engine protection.

Built with ultra-strong molded pliable rubber flanges, this filter is designed to absorb engine vibration while ensuring a secure, leak-free attachment. The flange material is flexible enough to stretch up to 1/16-inch (1.5mm) to accommodate unique or slightly oversized intake tubes. Like all K&N performance filters, the RU-5135 features a washable and reusable cotton gauze media, offering a long-term alternative to disposable filters.

• Part Number: RU-5135
• Flange Inside Diameter: 2-3/4 in (70mm)
• Base Outside Diameter: 5-1/16 in (129mm)
• Top Outside Diameter: 3-1/2 in (89mm)
• Filter Height: 4-3/8 in (111mm)
• Construction: Pliable rubber flange with cotton gauze media
• Maintenance: Washable and reusable
• Warranty: 1-Year Limited Warranty

The K&N RU-5111 Universal Air Filter is a high-performance solution designed for versatility across racing vehicles, utility equipment, and custom intake applications. Engineered with ultra-strong molded pliable rubber flanges, this filter absorbs heavy vibrations and ensures a secure mounting point. The flexible flange material allows for a stretch of up to 1/16-inch (1.5mm) to accommodate varied intake tube diameters between standard sizes.

Built for longevity and sustainability, this filter is fully washable and reusable, providing reliable filtration for everything from generators to snowmobiles. The tapered design allows for fitment in tight engine bays or custom-fabricated enclosures where space is at a premium.

• Part Number: RU-5111
• Flange Inside Diameter: 3 in (76 mm)
• Base Outside Diameter: 4.5 in (114 mm)
• Top Outside Diameter: 3.5 in (89 mm)
• Height: 5.75 in (146 mm)
• Flange Offset: 0 in (0 mm)
• Construction: Washable media with pliable rubber flange
• Warranty: 1-Year Limited Warranty