BMW G20 3 Series 330i 330e M340i LD Style Gloss Black Rear Diffuser with Dual LED Brake Lights 2019-2022

Upgrade the rear-end appearance of your 2019-2022 BMW G20 3 Series with this LD Style Gloss Black Rear Bumper Diffuser featuring dual vertical LED brake lights. Designed specifically for compatible pre-facelift 3 Series Sedans equipped with the M Sport rear bumper, this three-piece diffuser kit adds an aggressive, motorsport-inspired appearance to the lower rear bumper.

Constructed from durable, lightweight ABS plastic, the diffuser features a painted gloss black finish and a distinctive large shark-fin design. Two integrated vertical LED brake/strobe lights create a bold rear lighting signature, while the matching left and right corner extensions complete the aggressive lower bumper styling. The quad exhaust opening design complements compatible round exhaust outlet configurations.

Designed as a direct replacement for the original rear bumper diffuser, the center section uses compatible factory mounting locations, while the corner extensions attach using screws. Installation requires drilling and electrical wiring for the integrated LED lights. Rear bumper removal is highly recommended for proper fitment. Professional installation is strongly recommended to ensure secure attachment, correct exhaust clearance, and proper lighting operation.

Product Specifications

Key Features

• Designed for compatible 2019-2022 BMW G20 3 Series M Sport Sedans
• LD Style large shark-fin rear diffuser design
• Two integrated vertical LED brake/strobe lights
• Durable, lightweight ABS plastic construction
• Painted gloss black finish for a sporty rear appearance
• Quad exhaust opening design
• Matching left and right rear bumper corner extensions
• Direct replacement for the original M Sport rear diffuser
• Center diffuser mounts using compatible factory attachment points
• Corner extensions install using screws
• Three-piece exterior upgrade kit

Configuration Options

• BMW G20 330i: Compatible 2019-2022 Sedan models equipped with the M Sport rear bumper.
• BMW G20 330e: Compatible 2020-2022 Sedan models equipped with the M Sport rear bumper.
• BMW G20 M340i: Compatible 2020-2022 Sedan models with the appropriate rear bumper configuration. Factory rectangular exhaust finishers must be changed to a compatible round exhaust tip setup.
• Design: LD Style gloss black diffuser with large shark fins and corner extensions.
• Lighting: Dual vertical LED brake/strobe lights requiring electrical wiring.

Package Includes

• 1 x LD Style Gloss Black Rear Bumper Diffuser with Dual LED Lights
• 1 x Left Rear Bumper Corner Extension
• 1 x Right Rear Bumper Corner Extension

Note: Designed for compatible 2019-2022 BMW G20 3 Series pre-facelift Sedans equipped with the M Sport rear bumper. Not compatible with standard non-M Sport rear bumpers. M340i models with factory rectangular exhaust finishers require conversion to a compatible round exhaust tip configuration before installation. This diffuser does not include a dedicated cutout for the factory tow hook cover and will cover its lower portion; trimming may be needed if access is required. The gloss black finish is an aftermarket painted finish and may not exactly match the vehicle's original black paint. Installation requires drilling and electrical wiring for the LED lights. Factory bolts or screws may need to be reused for the corner extensions. Confirm the legality of any brake light strobe function under applicable local regulations. Professional installation is strongly recommended. Test fitting is recommended before final installation.

Installation

• Confirm the vehicle has a compatible BMW G20 M Sport rear bumper.
• Inspect the original rear diffuser and exhaust tip configuration.
• For M340i applications, replace the factory rectangular exhaust finishers with a compatible round exhaust tip setup before final fitting.
• Remove the original rear diffuser; rear bumper removal is highly recommended for proper access.
• Test fit the LD Style replacement diffuser against the factory mounting locations and exhaust openings.
• Position and secure the replacement center diffuser using compatible clips and screws.
• Test fit the left and right corner extensions and mark the required mounting locations.
• Drill appropriate mounting holes and attach the corner extensions using suitable screws, reusing factory hardware where appropriate.
• Connect the dual LED brake lights to the appropriate vehicle electrical circuit.
• Verify proper LED operation, including normal braking functions, and comply with applicable lighting regulations.
• Check exhaust clearance, tow hook access requirements, and secure attachment of all components.
• Professional installation is strongly recommended.
• Test fitting is recommended before final installation.

Fitment

• 2019-2022 BMW G20 330i 3 Series Sedan with M Sport rear bumper
• 2020-2022 BMW G20 330e 3 Series Sedan with M Sport rear bumper
• 2020-2022 BMW G20 M340i 3 Series Sedan with compatible bumper and round exhaust tip setup
• Compatible xDrive applications where the correct bumper and exhaust configurations are present
• Pre-facelift G20 Sedan applications only
• Not compatible with standard non-M Sport rear bumpers
• Not compatible with M340i factory rectangular exhaust finishers without modification
• Not listed for BMW G21 Touring or G80 M3
• Confirm bumper, exhaust outlet, mounting, and rear lighting compatibility before ordering

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom Retrofits & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-2 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.