2021-2025 BMW M4 G82/4 Series G22 BKSS Style Carbon Fiber Trunk Spoiler

Enhance the rear profile of your BMW M4 or 4 Series with this BKSS style carbon fiber trunk spoiler. Designed to add a bold and performance-inspired accent, this exterior upgrade creates a sharper appearance while complementing the vehicle’s factory body lines.

The sculpted BKSS style design follows the contours of the compatible trunk lid for a clean and integrated appearance. Its raised profile strengthens the vehicle’s aerodynamic presence and gives the rear end a more aggressive, motorsport-inspired finish.

Available in CFRP, FGCF, and Dry Carbon Fiber material options, this trunk spoiler combines lightweight construction, durable exterior performance, and premium finish quality. Designed for 2021-2025 BMW M4 G82 and 4 Series G22 models, each package includes one trunk spoiler.

Product Specifications

Key Features

• BKSS style trunk spoiler designed for BMW M4 and 4 Series Coupe models
• Fits 2021-2025 BMW M4 G82 and 4 Series G22 models
• Adds a bold and sportier rear profile
• Available in CFRP, FGCF, and Dry Carbon Fiber material options
• Lightweight construction with durable exterior performance
• Follows the compatible trunk contours for an integrated appearance
• Enhances the vehicle’s aerodynamic and visual presence
• Complements performance-focused and OEM+ exterior builds
• Installs using double-sided tape and automotive adhesive
• Includes one carbon fiber trunk spoiler

Configuration Options

• CFRP: Carbon fiber-reinforced polymer construction offering lightweight strength and a premium woven carbon fiber appearance
• FGCF: Forged carbon fiber construction featuring a distinctive textured pattern and performance-inspired finish
• Dry Carbon Fiber: Lightweight construction offering reduced weight, high rigidity, and refined finish quality

Package Includes

• One trunk spoiler

Note: Confirm the vehicle’s model, chassis, model year, body style, factory trunk lid design, and existing spoiler configuration before ordering. This listing includes the trunk spoiler only and does not include mounting tape, adhesive, hardware, or additional trim unless stated separately. Professional installation and test fitting are recommended.

Installation

• Designed for installation on the compatible rear trunk lid
• Professional installation is recommended for proper alignment and secure fitment
• Test fit the spoiler before applying double-sided tape or adhesive
• Remove any incompatible factory spoiler and residual adhesive where required
• Clean and prepare the trunk surface before installation
• Use automotive-grade double-sided tape and compatible adhesive
• Apply even pressure across the spoiler to promote secure adhesion
• Allow the adhesive to cure fully before driving or washing the vehicle

Fitment

• 2021-2025 BMW M4 G82 Coupe
• 2021-2025 BMW 4 Series G22 Coupe

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.