2021-2025 BMW M4 G82 & 4 Series G22 BKSSII Style Carbon Fiber Trunk Spoiler

Enhance the rear profile of your BMW M4 G82 or 4 Series G22 with this BKSSII style carbon fiber trunk spoiler. Designed to add a sleek and performance-inspired appearance, this exterior upgrade creates a sharper rear-end accent while complementing the vehicle’s factory body lines.

The sculpted BKSSII style design enhances the vehicle’s aerodynamic presence and gives the trunk area a more dynamic, motorsport-inspired profile. Its streamlined shape delivers a refined visual upgrade suitable for street, show, and track-inspired builds.

Crafted from CFRP, FGCF, or DryCF material options, this trunk spoiler combines lightweight construction, durable exterior performance, and premium finish quality. Designed for 2021-2025 BMW M4 G82 Coupe and 4 Series G22 Coupe models, each package includes one trunk spoiler.

Product Specifications

Key Features

• BKSSII style trunk spoiler designed for the BMW M4 G82 and 4 Series G22
• Designed for 2021-2025 BMW M4 and 4 Series Coupe models
• Adds a sleek and performance-inspired rear profile
• Available in CFRP, FGCF, and DryCF material options
• Lightweight construction with durable exterior performance
• Enhances the vehicle’s aerodynamic presence
• Creates a sharper and more dynamic trunk profile
• Complements the vehicle’s factory body lines
• Suitable for street, show, and track-inspired builds
• Includes one trunk spoiler

Configuration Options

• CFRP: Carbon fiber-reinforced polymer construction offering lightweight strength and a premium woven appearance
• FGCF: Forged carbon fiber construction featuring a distinctive textured finish
• DryCF: Lightweight dry carbon fiber construction offering premium strength and refined finish quality
• Spoiler Setup: BKSSII style design enhances the rear trunk profile with a streamlined aerodynamic accent

Package Includes

• One trunk spoiler

Note: Professional installation is recommended. Confirm the vehicle’s chassis, body style, and factory trunk configuration before ordering. Test fitting is recommended before applying adhesive or completing final installation. Refer to the available installation manual for product-specific guidance.

Installation

• Designed for installation on the rear trunk area
• Professional installation is recommended for proper alignment and secure fitment
• Test fit the trunk spoiler before applying mounting materials
• Clean and prepare the mounting surface before installation
• Automotive-grade double-sided tape or compatible adhesive may be required
• Follow the available installation manual for product-specific guidance
• Apply even pressure across the spoiler during installation
• Allow the adhesive to cure fully before driving 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.