BMW G22 G23 430i M440i 2DR M Style Gloss Black Side Skirt Extension 2021-2026

Upgrade the side profile of your 2021-2026 BMW G22 or G23 4 Series with these M Style Gloss Black Side Skirt Extensions. Designed for 2-door coupe and convertible models, these side skirt extensions add a lower, sharper, and more performance-inspired appearance.

The M Style design enhances the factory body lines of the 430i and M440i, while the gloss black finish creates a clean contrast against the exterior. These extensions also feature cutouts for vehicles equipped with illuminated lighting.

Built for BMW 4 Series owners looking to complete a sportier exterior setup, these side skirt extensions pair well with front lips, rear diffusers, spoilers, and other gloss black or carbon fiber styling upgrades.

Product Specifications

Key Features

• Designed for 2021-2026 BMW G22 and G23 4 Series 2-door models
• Compatible with 430i and M440i coupe and convertible applications
• M Style side skirt extension design adds a sharper and sportier side profile
• Gloss black finish creates a clean performance-inspired exterior accent
• Cutout design supports vehicles equipped with illuminated lighting
• Helps create a lower and more aggressive side appearance
• Pairs well with front lips, rear diffusers, spoilers, and other exterior upgrades

Configuration Options

• M Style gloss black side skirt extension configuration
• Designed for BMW G22 and G23 4 Series 2-door coupe and convertible models

Package Includes

• Pair of gloss black side skirt extensions
• Mounting hardware or adhesive if supplied by manufacturer

Note: Fits vehicles with illuminated lighting; side skirt extensions include a cutout for the lighting. Professional installation is recommended to ensure proper alignment, secure mounting, and best overall fitment.

Installation

• Installs along the lower side skirt / rocker panel area
• Clean and prep all mounting surfaces before installation
• Test fitting is recommended before final installation
• May require supplied hardware or automotive-grade adhesive depending on configuration
• Professional installation is recommended for best results

Fitment

• 2021-2026 BMW G22 4 Series 2-door coupe models
• 2021-2026 BMW G23 4 Series 2-door convertible models
• BMW 430i and M440i applications

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 & 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: 1-3 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.