Pipe Resonator BMW F20 F21 F30 F34 LCI Filtered Air Tube Hose 8479958

The BMW F20 F21 F30 F34 LCI Air Resonator Hose is an original intake system component, designed specifically for the facelifted 1 and 3 Series models. Thanks to its precise geometry and perfect fit with the factory BMW intake system, the filtered air supply pipe ensures stable engine operating conditions and reduces unwanted acoustic vibrations. This is a practical solution for users who want to restore proper intake function after damage or wear of the original hose.

Specifications and technical data

• SKU: 8479958-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8479958
• Substitutable numbers: 8479958, 13718479958
• Category: Hoses, Lines & Pipes

Purpose and Function in the Intake System

The Pipe Resonator BMW F20 F21 F30 F34 LCI Filtered Air Tube Hose acts as a conduit for filtered air within the intake system, while also serving as an acoustic resonator. The appropriately shaped tube helps to:

• stabilize airflow after it passes through the filter,
• reduce turbulence and local pressure drops in the intake,
• dampen unwanted air intake noises,
• maintain the factory performance characteristics of the BMW engine.

This solution is particularly important in modern engines where the intake system interacts with sensors and the engine control unit, and changes in pipe geometry can affect running smoothness and throttle response.

Construction and Fit for BMW F Series

This hose belongs to the Hoses, Tubes, and Pipes category, meaning it is designed as part of a system that transports a medium – in this case, intake air. The hose's construction is adapted to the factory mounting points and routing within the engine bay of BMW F20, F21, F30, and F34 facelift (LCI) models, making installation easy without the need for modifications.

Original BMW origin promotes:

• maintaining the correct stiffness and flexibility of the hose in areas prone to vibration,
• proper sealing of connections with other intake components,
• compatibility with standard clamps, brackets, and covers.

Benefits of Using an Original Resonator Hose

Using the factory resonator hose in the BMW intake system offers tangible operational benefits. This component helps maintain:

• stable airflow to the engine, contributing to consistent performance parameters,
• factory noise levels and acoustic comfort in the cabin,
• consistency with engine control unit maps, which were calibrated for the original intake system.

For users who avoid experimenting with non-original intake modifications, this hose is a sensible choice for preserving the driving characteristics as intended by the manufacturer.

Item Condition and Service Application

The offered resonator hose is a used original BMW part, allowing for a combination of an attractive price with the preservation of factory design. This is a practical solution for post-accident repairs, replacing a damaged hose due to cracks, abrasions, or overheating, as well as for restoring the stock intake system after previous modifications.

When selecting parts, it is important to pay attention to compatibility with the specific body version and facelift generation (LCI) to ensure the hose works correctly with other intake components and engine accessories.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as intake hoses, vacuum hoses, or coolant pipes, check the available parts in the BMW Hoses, Tubes, and Pipes category.

Additional Information and Technical Tips

When replacing the resonator hose in the intake system, it is also advisable to check the condition of adjacent components – the air filter housing, other hoses, clamps, and mounting points. Proper installation and leak-free connections directly impact the airflow meter's operation, the fuel-air mixture, and the engine's response to load.

If you are interested in a broader context of using used parts in a car and want to better assess the cost-effectiveness of such solutions, the article may be helpful: Replacing Body Parts with Used Ones – Can Dismantled Body Parts Look Like New?. Although it primarily concerns bodywork, it addresses important issues of quality and selection of used components that can also be applied to other vehicle parts.