K&N Engineering For RC-5052 Universal Custom Air Filter * Fits Mini Cooper

Vehicle Fitment

• Universal applications - not specific to any year/make/model/trim/engine. Verify flange and clearance before installation.

Features

• High-flow washable and reusable cotton gauze media for enhanced engine performance.
• Clamp-on universal design with pliable rubber flange for secure fit and vibration absorption.
• Flange inside diameter 4.00" (102 mm) fits many intake setups.
• Base outside diameter 6.625" (168 mm) for increased filter area.
• Top outside diameter 2.375" (60 mm) for tapered airflow design.
• Height 5.25" (133 mm) for compact installation in tight spaces.
• Durable construction with metal top for longevity.
• Pre-oiled and ready to install, reducing setup time and maintenance effort.
• 1-year limited manufacturer warranty included.

Specifications

• Flange inside diameter: 4.00 in (102 mm)
• Base outside diameter: 6.625 in (168 mm)
• Top outside diameter: 2.375 in (60 mm)
• Height: 5.25 in (133 mm)
• Filter media: oiled cotton gauze
• Universal clamp-on design fits many custom intake setups

Included Components

• 1x K&N RC-5052 universal clamp-on air filter

Product Description

The K&N RC-5052 universal clamp-on air filter is designed for non-vehicle-specific applications requiring high-flow filtration and performance. Its 4" ID flange, large filter area, and compact height make it ideal for custom intake systems, racing builds, generators, and off-road engines.

As a universal part, correct fitment must be confirmed by measuring the intake flange diameter and ensuring sufficient clearance around the filter. Installation is simple: clamp securely onto the intake tube. The washable and reusable design reduces long-term maintenance costs while providing consistent airflow and performance.