Side Splitters BMW F20 F21 M140i Rear Bumper Left Right N/O/S Trim Panel Set

Side Splitters BMW F20 F21 M140i Rear Bumper Left Right N/O/S Trim Panel Set is a set of rear bumper side splitters designed for the sporty BMW 1 Series M140i version. The set includes components mounted on the left and right sides of the vehicle's rear, allowing for a visually and technically consistent finish of the bumper area. This is a practical solution for users who want to maintain the original character of the bodywork and ensure the aesthetic fit of aerodynamic elements.

Specifications and technical data

• SKU: M140i Splitters
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: M140i Splitters
• Substitutable numbers: M140i, Side Splitters, Rear Bumper, BG
• Location on the vehicle: Rear, Right, Left
• Category: Other Exterior Parts & Accessories

Purpose and function of the component

The presented set of side splitters is dedicated to the BMW M140i rear bumper for the F20/F21 body style, with placement on the right and left sides of the rear of the vehicle. These elements serve both a finishing and aerodynamic function – they manage airflow in the bumper area and give the bodywork a characteristic, dynamic look typical of the M Performance version.

The set includes trim panels, making it possible to maintain a consistent bumper line and reduce visual discrepancies after potential repairs or the replacement of individual components. This solution is particularly beneficial when rebuilding the rear of a vehicle after a collision or when upgrading a standard bumper to the M140i specification.

Construction and fitment for the BMW M140i

The splitters have been designed as original BMW components, which translates into a proper fit with the factory bumper and compatibility with the mounting points provided by the manufacturer. As a result, installation does not require structural modifications or shape adjustments – the elements integrate with the body line in accordance with the factory geometry.

The set includes both the left and right sides, allowing for a symmetrical finish of the rear of the vehicle. This layout makes it easier for technicians and users to carry out repairs in a predictable manner, while maintaining the original styling and the correct distribution of forces acting on the bumper elements during driving.

Benefits of using the splitter set

Using this set in a BMW M140i allows for:

• restoring the factory look of the rear bumper after mechanical damage,
• maintaining the consistent stylistic line of the M140i version in the F20/F21 body,
• preserving proper airflow management in the rear part of the bodywork,
• easier quality control of the installation thanks to the fitment to original mounting points.

For users who value original manufacturer solutions, it is important that the set is based on factory BMW geometry, which minimizes the risk of installation problems and limits the need for additional body modifications.

Condition characteristics and practical application

The items come from the secondary market, making them an attractive alternative to new components while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial for repairs of vehicles used on a daily basis, where a reasonable balance between cost and maintaining the factory look and function of the element is important.

Due to their dedicated placement in the rear of the vehicle, the splitters will work well both for post-accident repairs and for visual upgrades, when the owner wants to equip the car with the characteristic bumper finish typical of the M140i version.

More BMW parts and technical knowledge

If you are planning a comprehensive repair or upgrade of the rear bumper area in your BMW and need other elements from the same group, such as additional trim panels, covers, or overlays, check out the available parts in the Other BMW category.

To compare the character of sports versions from different brands and better understand the structural differences in the engine, brakes, and chassis areas, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers design components for high-performance versions.

If you are interested in a broader context of using original secondary market components in premium class cars, the material Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, describing the current approach to repairs and upgrades of such vehicles, may be helpful.