BMW Z3 E36 E46 M3 S54 Engine Exhaust Manifold Pipes Cylinder 4-6 Damaged 7830660

Visual condition of the part

The product shows signs of use visible in the photos.

BMW Z3 E36 E46 M3 S54 Engine Exhaust Manifold Pipes Cylinder 4-6 Damaged is an original exhaust system component for the S54 petrol engine, designed for BMW models from the Z3 family and the 3 Series E36 and E46 M3. This is a used part with noted damage, making it an excellent base for repair, refurbishment, or comparison during professional exhaust system diagnostics. Thanks to its factory geometry and fitment for the S54 unit, the manifold allows for maintaining proper exhaust flow parameters in the cylinder 4–6 section.

Specifications and technical data

• SKU: RHD-7830660-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7830660
• Substitutable numbers: 11627830660, 7830660
• Fuel type: Petrol
• Part type: Exhaust Manifold
• Category: Manifolds & Headers

Purpose and compatibility with the S54 engine

The presented item belongs to the Exhaust Manifolds category and is dedicated to the S54 petrol engine used in the sports versions of the BMW Z3 and 3 Series E36 and E46 M3. It is responsible for discharging exhaust gases from cylinders 4–6, which has a direct impact on the engine's performance characteristics, system pressure stability, and the proper operation of subsequent exhaust components.

Due to its factory origin, the manifold retains the original channel geometry, which facilitates installation in place of the stock component and allows for precise fitting to the cylinder head and the rest of the exhaust system.

Condition, damage, and possible applications

The item is used and damaged, which should be taken into account when planning installation. This condition means the manifold can be:

• a base for professional refurbishment or welding at a specialized workshop,
• a reference part for fitting aftermarket or performance systems,
• a source of original mounting details and attachment points.

For workshops specializing in BMW M3 and S54 units, this type of component is useful when rebuilding exhaust systems after collisions, track modifications, or for projects requiring the retention of factory mounting points.

Benefits of using an original exhaust manifold

Choosing an original exhaust manifold for a BMW with an S54 engine, even in a condition requiring repair, offers several significant advantages:

• Factory fitment – compatibility with the cylinder head, engine accessories, and the rest of the exhaust system is maintained.
• Stable exhaust flow parameters – the appropriate length and diameter of the channels in the cylinder 4–6 section support the proper operation of the unit at high RPMs.
• Possibility of precise refurbishment – the original construction facilitates repair in facilities specializing in welding and straightening manifolds.

For users who want to preserve the character of the stock S54 engine or are preparing a car for motorsport while maintaining a factory base, such a manifold is a valuable starting point for further work.

Application area and BMW exhaust system expansion

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, connecting pipes, or exhaust sections for the remaining cylinders, check out the available parts in the BMW Exhaust Manifolds category.

To better plan modifications or repairs to the exhaust system in your car, it is worth expanding your knowledge about the impact of manifolds on performance and engine operation characteristics – practical tips and examples of applications can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road.

If you are considering whether new or used parts will work better in your project, comparing costs and durability described in the guide Car parts – new or used? We compare costs, quality, and durability may be helpful, which will facilitate making an informed decision when selecting exhaust system components.