Mini Cooper S R55 R56 R57 LCI N14 Air Intake Silencer Filter Box

The Mini Cooper S R55 R56 R57 LCI N14 Air Filter Housing Resonator Box is an original intake system component designed for the N14 engine in facelifted LCI versions. This used, factory air filter housing with resonator ensures stable air delivery to the engine and proper intake noise damping, contributing to predictable engine operation. It's a solution for users seeking a proven OEM component instead of aftermarket alternatives with uncertain parameters.

Specifications and technical data

• SKU: 7577509
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7577509
• Substitutable numbers: 13717577509, 7577509, 13717555782, 7555782
• Category: Other Air & Fuel Delivery

Intended Use and Function in the Intake System

The air filter housing integrated with the resonator is responsible for directing air from the intake to the filter element and then towards the throttle body. The factory-matched design for the N14 engine in Mini Cooper S R55, R56, and R57 LCI models helps maintain proper intake vacuum and reduce turbulence, promoting uniform cylinder filling.

The resonator also serves as an acoustic element, reducing undesirable intake noise frequencies, thus ensuring the engine's operating characteristics remain consistent with the manufacturer's original specifications. Using the original housing is particularly important for vehicles where maintaining stock parameters and correct compatibility with the factory engine control unit software are crucial.

Construction and Benefits of Using Mini OEM Parts

The factory Mini air filter housing is designed as a component with specific rigidity and sealing, which minimizes the risk of intake leaks and uncontrolled intake of unfiltered air. The shape of the box and intake ducts is tailored to the engine bay of the R55, R56, and R57 versions, facilitating installation and eliminating the need for modifications.

Key benefits of using the original housing include:

• maintaining the factory airflow characteristics in the N14 engine,
• proper compatibility with the stock intake system and body mountings,
• preserving the stock noise level and acoustic comfort,
• easier diagnosis of potential leaks compared to tuning solutions.

Condition, Verification, and Service Application

This item comes from the Other category, meaning it is a complete, used air filter housing with resonator, intended for reinstallation after standard service inspection. This type of part is particularly useful for:

• repairs after mechanical damage to the housing (cracks, broken mounts),
• restoring the stock intake system after modifications,
• resolving issues with intake leaks and unstable engine operation.

Before installation, it is recommended to check the seals, the condition of vacuum ports, and mounting points to ensure proper seating in the engine bay and avoid additional stress.

Selection by OEM Number and Technical Support

Due to the specific nature of Mini models and variations between engine versions, selecting an air filter housing with a resonator should be based on the OEM number and vehicle data. In practice, this means verifying compatibility with the specific body version (R55, R56, R57), N14 engine, and post-facelift LCI production year. A helpful guide on selecting parts by numbers is also available here: how to choose the right car part by VIN and OEM number.

If you are interested in other parts from the Other category dedicated to this brand, check our offer using the link: other Mini parts. This will help you easily assemble a set of components needed for complete servicing of the intake system and related systems.

Summary and Additional Materials

The Mini Cooper S R55 R56 R57 LCI N14 Air Filter Housing Resonator Box is a practical solution for users who want to maintain the stock engine operating characteristics while preserving the original intake system design. A used OEM part helps reduce repair costs while maintaining compatibility with factory mountings and airflow parameters.

For those interested in a broader context of design differences in performance car versions and their components, we recommend the comparative material: Audi RS vs. other models – what's under the hood and chassis?. It helps to better understand how manufacturers design components such as intake systems, brakes, or chassis in high-performance versions, which can also be helpful for informed servicing of the Mini Cooper S.