BMW F87 M2 F80 M3 F82 F83 M4 S55 4-6 Cyl Turbocharger Air Inlet Pipe 7849651

The BMW F87 M2 F80 M3 F82 F83 M4 S55 4-6 Cyl Turbocharger Pipe is an original equipment turbocharger and parts component designed for sporty BMW models with the S55 petrol engine. This OEM part ensures a factory fit, stable airflow parameters, and maintains the engine's operating characteristics in accordance with the manufacturer's specifications.

Specifications and technical data

• SKU: 7849651-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7849651
• Substitutable numbers: 7849651, 11657849651
• Fuel type: Petrol
• Category: Turbos & Parts

Purpose and role in the charging system

The turbocharger pipe in the S55 engine is responsible for precisely routing compressed air between the turbocharger components. In the powerful 4-6 cylinder engines of the BMW M2, M3, and M4, stable airflow is crucial for:

• maintaining the appropriate boost pressure throughout the full rpm range,
• correct operation of the engine control and injection system,
• repeatable performance during dynamic track and road driving.

Using an original pipe from the same model line minimizes the risk of leaks, power drops and charging errors.

Compatibility with S55 unit and petrol fuel

The S55 engine is a high-revving, turbocharged petrol engine whose intake system operates under significant thermal and pressure loads. The S55's dedicated turbocharger manifold was designed with:

• resistance to temperatures typical of supercharged petrol engines,
• stable shape retention under variable boost pressure,
• cooperation with factory turbochargers and BMW M accessories.

This maintains the integrity of the entire boost system, which translates into predictable throttle response and correct operation of the traction and stability control systems.

Benefits of using a genuine used BMW part

Choosing a used original BMW turbocharger pipe is a sensible compromise between cost and quality. This type of component provides:

• factory geometry and internal diameters, important for proper air flow,
• secure fit to mounts and other components of the intake system,
• maintaining the stock engine operating characteristics without the need to modify the software.

A used OEM part is particularly attractive for accident repairs, replacing a damaged pipe after overheating, or restoring a car to its factory configuration after unsuccessful modifications.

Professional use in service and motorsport

The turbocharger pipe for the BMW F87 M2, F80 M3, F82/F83 M4 is suitable for both professional M-specialized workshops and workshops preparing cars for sports cars. This component is particularly important when:

• power drops or unstable boost pressure occur,
• micro-cracks, leaks or mechanical damage to the factory pipe were found,
• it is necessary to replace it with a part of known origin and parameters compatible with BMW.

Using original components in the supercharging system reduces the risk of turbocharger failure and unwanted deviations in the fuel-air mixture, which is important for the durability of the petrol engine.

Other BMW turbochargers and parts

If you're also looking for other turbochargers and parts for BMW, check out our dedicated offer: turbochargers and parts for BMW . This allows you to easily assemble an entire turbocharger system based on OEM components, maintaining technical consistency and high reliability.

Technical knowledge and design development

To compare solutions used in other premium brands and better understand the evolution of drive systems, it's worth reviewing the material discussing design changes in the luxury sedan segment: Evolution of the Mercedes S-Class: From W140 to W222 – Innovations and Component Development . This allows you to better appreciate the importance of properly selected turbocharging system components in modern petrol engines.