BMW 3 E92 E93 M3 1 Rear Exhaust Silencer Muffler Back Box Double Twin Pipe

BMW 3 E92 E93 M3 1 Rear Exhaust Silencer Muffler Back Box Double Twin Pipe is an original exhaust system component designed for installation at the rear of the vehicle. It ensures proper sound dampening while maintaining the characteristic sporty acoustics of the M series and efficient exhaust gas discharge. Thanks to its factory design, the component works perfectly with the stock BMW M3 E92/E93 exhaust system, without the need for any modifications to the suspension geometry or bodywork.

Specifications and technical data

• SKU: 7848119-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7848119
• Substitutable numbers: 18307848119, 7848119, 18307840791, 7840791
• Weight: 150
• Location on the vehicle: Rear
• Category: Mufflers & Resonators

Purpose and function in the exhaust system

The presented rear silencer is a component from the Silencers and resonators group, operating in the rear zone of the exhaust system. It is responsible for the final silencing of exhaust gases, flow stabilization, and maintaining the appropriate backpressure, which is crucial for the performance of the BMW M3 E92/E93 engine. The double twin pipe ensures a characteristic, sporty look and even distribution of the exhaust stream.

Design and fitment for BMW M3 E92/E93

The original silencer design was engineered specifically for the rear body geometry of the BMW 3 Series E92 and E93 M3 versions. This means:

• precise fitment to factory mounting points,
• compatibility with the stock exhaust system line,
• proper pipe routing in the rear suspension area,
• maintenance of proper chassis ground clearance.

As a result, installation is similar to the factory process, with no structural modifications required. The component is compatible with original clamps and hangers, which facilitates service and future inspections.

Operating characteristics and performance properties

The rear silencer in the BMW M3 E92/E93 is responsible not only for noise reduction but also for shaping the engine's sound. The applied chamber and internal baffle design allows for a sporty yet controlled sound, in line with BMW M factory specifications. At the same time, proper flow capacity is maintained, which promotes stable engine operation across the entire rev range.

The properly selected weight of the component influences the balance of the rear of the vehicle and the dampening of vibrations transmitted through the exhaust system. Using an original rear silencer reduces the risk of unwanted resonance, excessive interior noise, and compatibility issues with other exhaust components.

Condition, installation, and service application

The item is sourced from disassembly and is offered as a used part, which is a cost-effective solution for accident repairs, replacing a worn-out exhaust system, or restoring a vehicle to its factory configuration after modifications. The silencer is intended for installation at the rear of the vehicle, in place of the factory BMW M3 E92/E93 rear silencer.

In service practice, such a component is suitable for, among others:

• replacing a damaged or corroded rear silencer,
• restoring the original sound and exhaust performance characteristics,
• repairs following rear-end collisions,
• inspection and service of the exhaust system in track and road-used vehicles.

Complementary BMW exhaust system components

If you are planning a comprehensive repair or upgrade of the exhaust system area in your BMW and need other components from the same group, such as additional silencers, resonators, or pipe sections, check out the available parts in the BMW Silencers and resonators category.

Technical support and service knowledge

When working on the exhaust system, it is worth paying attention to the general condition of the suspension, mounts, and mating components to avoid vibration transmission and unwanted noises. To expand your knowledge on the diagnostics and service of key chassis components, you can use the practical tips contained in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps to better understand the relationship between suspension condition and acoustic comfort and vehicle handling.