BMW 3 Series E90 E92 E93 M3 S65 Exhaust Manifold Cylinder 5-8 7842224

Visual condition of the part

The product shows signs of use visible in the photos.

BMW 3 Series E90 E92 E93 M3 S65 Exhaust Manifold Cylinder 5-8 is an original exhaust system component from the Exhaust manifolds group, designed for the sports versions of the BMW M3 with the S65 engine. This solution was created for precise exhaust gas discharge, stable V8 engine performance, and maintaining the factory engine operating characteristics.

Specifications and technical data

• SKU: 7842224
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7842224
• Substitutable numbers: 11627842224, 7842224, 11627840478, 7840478
• Category: Manifolds & Headers

Purpose and technical specifications

The presented exhaust manifold was designed specifically for the S65 unit used in the BMW 3 Series E90, E92, and E93 M3 versions. The manifold construction is adapted to the high RPMs and loads typical of a naturally aspirated V8 engine, which translates into stable exhaust pressure, predictable throttle response, and proper operating conditions for the subsequent components of the exhaust system.

Thanks to the factory geometry of the channels, the manifold ensures even cylinder scavenging, which helps maintain stock power and torque while reducing the risk of unwanted vibrations and thermal stress in the system. This is particularly important in cars used dynamically, on the track, or under high-load conditions.

Benefits of using an original BMW manifold

Using an original exhaust manifold in an M3 with an S65 engine allows for maintaining the consistency of the entire powertrain. In practice, this means:

• factory fitment to the cylinder heads and the rest of the exhaust system,
• preservation of the stock V8 engine sound characteristics,
• proper cooperation with lambda sensors and the engine control unit (ECU),
• reduced risk of leaks at the connections.

The original manifold is particularly recommended for repairs following mechanical or thermal damage, as well as when restoring a car to a configuration close to factory specifications after previous modifications. Using an OEM component facilitates diagnostics, service, and future vehicle resale, as it eliminates many variables associated with non-original solutions.

Condition, verification, and preparation for installation

The component comes from the secondary market, which allows for combining an attractive price with the preservation of original BMW specifications. The manifold is intended for further use after a standard installation check by a workshop – it is recommended to verify the mating surfaces, threads, and mounting points before installation. Professional installation at a specialized service center minimizes the risk of leaks and ensures proper positioning of the component relative to the engine block and the rest of the exhaust system.

When replacing the manifold, it is worth using new gaskets, bolts, and nuts in accordance with the manufacturer's recommendations to avoid the need for re-intervention in the system in the near future. This is especially important in cars operated under high-temperature and high-load conditions, typical for the M3.

Application in tuning and sports operation

The BMW M3 with the S65 engine is often used in amateur and semi-professional sports. In such applications, it is crucial to maintain stable engine operating parameters and predictable car behavior. The factory exhaust manifold provides a solid foundation for both stock configurations and moderate tuning (e.g., changing the rest of the exhaust, software modifications), ensuring repeatable exhaust flow conditions.

For users considering alternatives such as sports manifolds or performance solutions, additional information regarding the impact of such modifications on engine durability and characteristics may be useful. In this context, it is worth checking out our guide: Performance exhaust system – used manifolds and sports catalytic converters on the road, where practical aspects of selecting and operating used exhaust system components in premium brands are discussed.

Expanding the BMW exhaust system

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 manifold sections, connectors, or transition elements, check out the available parts in the BMW exhaust manifolds category.