2008-2012 BMW M3 E92/E93 ET Style Carbon Fiber Side Skirts Under Board

Enhance the side profile of your BMW M3 with these ET Style carbon fiber side skirt under boards. Designed for the E92 and E93 chassis, this exterior upgrade creates a lower and more aggressive appearance while complementing the vehicle’s sculpted factory body lines.

The streamlined ET Style design adds greater visual definition along the rocker panels and gives the M3 a more purposeful, performance-inspired stance. Their extended under-board profile enhances aerodynamic presence and pairs naturally with compatible front lips, rear diffusers, trunk spoilers, and other exterior upgrades.

Available in CFRP and forged carbon fiber configurations, these side skirt under boards combine lightweight construction with premium exterior styling. Designed for compatible 2008-2012 BMW M3 E92 and E93 models, each package includes one pair of ET Style side skirts.

Product Specifications

Key Features

• ET Style side skirt under boards designed for compatible BMW M3 models
• Compatible with listed E92 and E93 chassis applications
• Creates a lower and more aggressive side profile
• Adds greater visual definition along the rocker panels
• Extended under-board design complements the vehicle’s factory body lines
• Available in woven CFRP and forged carbon fiber configurations
• Lightweight construction with a premium exterior finish
• Designed to complement compatible front lips, rear diffusers, and trunk spoilers
• Includes driver-side and passenger-side components
• Includes one pair of ET Style side skirts

Configuration Options

• CFRP: Carbon fiber reinforced polymer construction with a traditional woven carbon fiber appearance
• Forged Carbon Fiber: Carbon fiber construction with a distinctive randomized forged carbon pattern

Package Includes

• One pair of ET Style side skirts under boards

Note: Brackets, clips, screws, double-sided tape, automotive adhesive, and additional mounting hardware may not be included unless otherwise specified.

Installation

• Designed for installation along the compatible factory rocker panel areas
• Professional installation is recommended for accurate alignment and secure mounting
• Test fit both side skirt under boards before drilling, trimming, applying adhesive, or completing final installation
• Clean and degrease all mounting surfaces thoroughly before installation
• Use suitable automotive screws, clips, brackets, double-sided tape, or adhesive as required
• Additional mounting hardware or supporting brackets may be necessary
• Minor drilling, trimming, sanding, or alignment adjustment may be required
• Confirm even alignment along both sides of the vehicle
• Verify secure attachment and sufficient ground clearance before driving

Fitment

• 2008-2012 BMW M3 Coupe E92
• 2008-2012 BMW M3 Convertible E93

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.