Audi RS4 B8 RS5 8T Inlet Intake Manifold 4.2 FSI CFSA Petrol 079133185CS

Audi RS4 B8 RS5 8T Inlet Intake Manifold 4.2 FSI CFSA Petrol is an original intake system component designed for high-performance petrol engines. Engineered by Audi for 4.2 FSI units, it ensures precise airflow to the cylinders and stable operating conditions during dynamic driving. This is a solution for users who expect consistency with the factory design and predictable engine behavior.

Specifications and technical data

• SKU: 079133185CS-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 079133185CS
• Substitutable numbers: 079133185CS, 079 133 185 CS
• Fuel type: Petrol
• Part type: Intake Manifold
• Category: Intake Manifolds

Purpose and role in the intake system

The intake manifold in RS4 B8 and RS5 8T models with the 4.2 FSI CFSA engine is responsible for the even distribution of air to all cylinders. In high-power petrol units, this is crucial for:

• maintaining a stable air-fuel mixture across the entire rev range,
• proper operation of the FSI direct injection system,
• engine throttle response under sporty load,
• preserving factory power and torque parameters. Thanks to a design tailored to the specifics of the CFSA engine, the manifold works in harmony with the control electronics and other intake components, which facilitates diagnostics and subsequent maintenance.

Benefits of using an original intake manifold

Using a factory manifold in Audi RS4 B8 and RS5 8T cars allows for maintaining the integrity of the entire powertrain. In practice, this means:

• secure fitment to the cylinder head and engine accessories without the need for modifications,
• preservation of the stock performance characteristics of the 4.2 FSI unit,
• easier integration with the engine management system,
• the ability to use existing mounting points and connections. For users who drive their cars dynamically, the original intake manifold is a solution that allows for maintaining predictable vehicle behavior and reducing the risk of problems resulting from incompatible aftermarket replacements.

Product characteristics and condition

The offered item comes from the Intake Manifolds group and is intended for a petrol-powered engine. The product is used, which in practice means the possibility of an economical repair or restoration of the factory intake system configuration without the need to invest in a new component. This is a particularly beneficial solution for comprehensive overhauls of 4.2 FSI units, where part costs can be significant. By maintaining the original geometry of the intake runners, the manifold allows for proper airflow, which is important for both performance and the correct operation of emission control systems.

Application in 4.2 FSI CFSA petrol engines

4.2 FSI CFSA engines are high-revving units where the intake system operates under a wide range of loads. The intake manifold dedicated to this configuration is designed with the following in mind:

• stable cylinder filling at high engine speeds,
• cooperation with the ignition and injection control system,
• maintaining proper airflow during daily driving and hard acceleration,
• preserving the throttle response characteristic of the RS4 and RS5. For owners of these models, choosing an original intake manifold is a way to restore the factory properties of the powertrain after a failure or wear of the previous component.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of your Audi's engine bay and need other components from the same group, such as additional manifolds, intake parts, or throttle bodies, check the available parts in the Audi Intake Manifolds category. To better understand the impact of intake and exhaust components on the performance characteristics of petrol units and to learn practical tips on selecting used components, it is worth checking out the guide: Performance exhaust system: used manifolds and sports catalytic converters on the road.