2021-UP BMW M3 G80 BKSS Style Rear Diffuser

Upgrade the aggressive rear stance of your 2021+ BMW M3 G80 with this BKSS Style Carbon Fiber Rear Diffuser. Featuring integrated LED lighting and quad exhaust tips, it delivers a motorsport-inspired finish that enhances both style and function.

Crafted from high-quality CFRP, FGCF, or Dry Carbon Fibre, this diffuser ensures durability and ultra-lightweight performance. The layered carbon weave adds a premium visual impact that complements your vehicle’s rear end.

Includes one rear diffuser with LED light and one set of exhaust tips. Designed for direct replacement—professional installation is recommended for best results.

Fitment: 2021–UP BMW M3 G80
Package Contents:

• One rear diffuser with LED light

• One set of exhaust tips

Made To Order Shipping Information Made-to-Order Items: If a material option shows "MADE TO ORDER", it means that specific option is currently out of stock and will be produced upon order. Customers can choose from the following shipping methods: * Standard Shipping And Handling (no extra cost) with an ETA of 3-4 months. * Expedited Shipping And Handling (additional cost: $550) with an ETA of 5-6 weeks. In-Stock Items: If a product does not display "Made To Order" when selecting a material option, then it is in stock. It will be shipped from our warehouses within 3-5 business days, plus shipping time.

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.