Exhaust Manifold BMW E90 E91 E93 E60 E65 E70 Diesel M57N2 Exhaust 7811449

Exhaust Manifold BMW E90 E91 E93 E60 E65 E70 Diesel M57N2 is an original component from the Exhaust manifolds group, designed for BMW diesel engines from the M57N2 family. This used OEM component allows for maintaining the factory operating characteristics of the power unit, ensuring proper exhaust gas discharge and stable operating conditions for the turbocharged diesel engine.

Specifications and technical data

• SKU: 7811449-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7811449
• Substitutable numbers: 7811449, 11627811449, 7796886, 11627796886, 7801714, 11627801714
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and compatibility with the M57N2 diesel engine

The presented exhaust manifold has been designed for use in BMW E90, E91, E93, E60, E65, and E70 models equipped with the M57N2 diesel engine. The design, adapted to the specifics of the diesel unit, ensures proper exhaust flow, which translates into stable boost pressure, correct turbocharger operation, and appropriate conditions for the subsequent elements of the exhaust system.

Thanks to the factory geometry of the channels, the manifold maintains the flow parameters intended by the manufacturer, which is important both in stock configurations and when maintaining compliance with the factory engine control unit software. This solution is particularly beneficial for repairs where the priority is to maintain original driving characteristics and the durability of the power unit.

Construction and role in the exhaust system

As an element from the Exhaust manifolds group, this component is responsible for collecting exhaust gases from individual cylinders and directing them to the rest of the system. Properly shaped channels minimize adverse turbulence, which reduces pressure losses and supports the efficient operation of the turbocharging system in a diesel engine.

A properly selected exhaust manifold has a direct impact on:

• maintaining the correct temperature and pressure of exhaust gases at the cylinder head,
• stable operation of the turbocharger and exhaust gas recirculation system,
• reducing the risk of leaks in the critical area between the engine and the rest of the exhaust system.

Choosing an original, used OEM component allows for maintaining factory mounting points and compatibility with engine accessories, which facilitates installation and service.

Benefits of using an original BMW manifold

Using an original exhaust manifold in the M57N2 engine brings a number of practical service and operational benefits. Key advantages include:

• Factory fit – maintaining the original geometry and mounting spacing, which facilitates installation and reduces the risk of stress in the system.
• Exhaust system consistency – compatibility with stock turbochargers, seals, and other exhaust components in E90, E91, E93, E60, E65, and E70 models.
• Stable diesel engine operating parameters – maintaining the exhaust flow conditions intended by the manufacturer, which promotes smooth engine operation and correct response to load.

This solution is especially recommended for repairs where repeatability of parameters and reducing the risk of fitment issues with aftermarket parts of uncertain geometry is important.

Use in service and upgrades

The Exhaust Manifold BMW E90 E91 E93 E60 E65 E70 Diesel M57N2 will prove useful both for standard replacement of a worn-out part and for more extensive engine work, such as cylinder head removal or a comprehensive exhaust system inspection. A used OEM component allows for optimizing repair costs while maintaining high quality and compliance with factory specifications.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional manifolds, connection sections, or mounting elements, check out the available parts in the BMW Exhaust manifolds category.

More about the exhaust system and used parts

When choosing a used exhaust manifold for a BMW, it is worth paying attention to the general concept of the exhaust system, the relationship between the manifold, turbocharger, and other components, and how the condition of individual sub-assemblies affects engine refinement. If you want to better understand the topic and learn practical tips on choosing used manifolds for various brands, check out the article Performance exhaust system: used manifolds and sports catalytic converters on the road, where you will find broader technical context and purchasing advice.