BMW F20 F30 Exhaust System Back Box Silencer 114i 116i 316i N13 7616703 7616704

Visual condition of the part

The product shows signs of use visible in the photos.

BMW F20 F30 Exhaust System Back Box Silencer 114i 116i 316i N13 is an original exhaust system component designed for BMW 1 Series and 3 Series models with 114i, 116i, and 316i engines. As part of the Silencers and resonators group, it ensures proper exhaust noise reduction, stable engine operation, and compliance with the manufacturer's factory specifications. This used OEM component is a sensible choice for professional repairs or replacing a worn-out exhaust in BMW F20 and F30 vehicles.

Specifications and technical data

• SKU: 7616704
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7616704
• Substitutable numbers: 7616704, 7616703, 7646031, 18307646031
• Location on the vehicle: Rear
• Fuel type: Petrol
• Part type: Silencer
• Category: Mufflers & Resonators

Purpose and compatibility

The offered back box silencer is designed for installation in the rear section of the exhaust system in F-series BMW vehicles with the N13 petrol engine. The construction is adapted to the characteristics of the 114i, 116i, and 316i units, which allows for maintaining factory exhaust flow parameters, noise levels, and engine refinement. As a result, this component works well both as a replacement for a worn silencer and as a part used in accident repairs or exhaust system servicing.

Construction and function in the exhaust system

The back box silencer plays a key role in reducing noise generated by the petrol engine and in shaping the acoustic characteristics of the car. The internal structure of the chambers and baffles is optimized for the N13 unit, which allows for:

• effective damping of vibrations and pressure waves in the exhaust gases,
• maintaining appropriate backpressure in the exhaust system,
• reducing resonances in the passenger cabin,
• maintaining stable engine operation across the entire rev range.

As an original BMW component, the silencer ensures a proper fit with other system components, such as mid-pipes or resonators, which facilitates installation and reduces the risk of leaks.

Benefits of using an original BMW silencer

Using an original back box silencer in a BMW F20 and F30 with a petrol engine brings a number of practical benefits in daily operation:

• Factory geometric fit – correct exhaust pipe routing and position of the silencer box relative to the body and suspension.
• Stable acoustic parameters – noise level in line with manufacturer specifications, without excessive booming or unwanted resonances.
• Compatibility with original mounts and hangers – no need for modifications, welding, or adjusting universal parts.
• Consistency with other exhaust system components – maintaining correct exhaust flow and engine operation under all load conditions.

Condition, service application, and selection by part numbers

The offered silencer belongs to the group of used parts, which allows for reducing repair costs while maintaining the original manufacturer's specification. This type of component is particularly useful for:

• repairs after mechanical damage to the rear part of the vehicle,
• replacing a worn or corroded back box silencer,
• restoring the factory characteristics of the exhaust system after previous modifications.

For the correct selection of the component, it is worth using the OEM part number and interchangeable numbers assigned to this silencer model – this allows for precise matching to a specific engine version and body style of the BMW F20 or F30.

If you want to better understand how to safely choose used mechanical components based on manufacturer markings and catalog numbers, the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which describes practical procedures for selection by OEM and VIN numbers, will be helpful.

Expansion and servicing of the BMW exhaust system

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

Selecting elements from one design group allows for maintaining the technical consistency of the entire system, facilitates installation, and reduces the risk of fitment issues or leaks, which has a direct impact on driving comfort and the durability of other components.