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BimmerPlug Carbon Fiber Rear Diffuser BMW G80 M3 / G82 M4

Price
$1,300.00

Select Style:

MP Style

Diffuser Trim:

Yes
Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

Upgrade the rear appearance of your BMW G8X M3 or M4 with the Carbon Fiber Rear Diffuser, a premium exterior enhancement designed to add aggressive styling and a more motorsport-inspired presence. Available in multiple styles, including MP, AK, and 3D designs, this diffuser transforms the factory rear bumper with sharper lines, enhanced contours, and a significantly more performance-focused look.

Constructed from premium dry carbon fiber with a 2x2 weave pattern and finished in a high-gloss UV-resistant clear coat, the diffuser delivers exceptional fitment, lightweight construction, and long-lasting durability. Beyond aesthetics, the diffuser is designed to optimize airflow around the rear of the vehicle while complementing factory and aftermarket exhaust systems.

Whether paired with a carbon fiber trunk spoiler, side skirts, or front lip, this rear diffuser serves as one of the most impactful visual upgrades available for the G8X platform, helping your M car stand out while maintaining an OEM+ appearance.

Fitment Notes

  • Fits BMW G80 M3 Sedan (2021+)
  • Fits BMW G82 M4 Coupe (2021+)
  • Fits BMW G83 M4 Convertible (2021+)
  • Compatible with both Pre-LCI and LCI models
  • Available in MP Style, AK Style, and 3D Style configurations
  • Designed to integrate with the factory rear bumper
  • Compatible with OEM and most aftermarket exhaust systems
  • Professional installation recommended
  • Optional carbon fiber diffuser trim available depending on configuration selected

Included

  • Carbon Fiber Rear Diffuser (selected style)
  • Carbon Fiber Diffuser Trim (if selected)
  • Installation hardware
  • Mounting components required for installation

Product Specs

  • Material: Dry carbon fiber construction
  • Carbon Weave: 2x2 weave pattern
  • Finish: High-gloss UV-resistant clear coat
  • Available Styles: MP Style, AK Style, 3D Style
  • Construction: Lightweight composite design
  • Location: Rear bumper diffuser replacement
  • Fitment: OEM-style direct-fit application

Product Features

  • Premium dry carbon fiber construction with visible 2x2 weave
  • Available in multiple diffuser styles to match your build aesthetic
  • Aggressive motorsport-inspired design enhances rear-end appearance
  • Helps improve airflow management around the rear bumper area
  • High-gloss UV-protected finish for long-term durability
  • Designed for OEM-like fitment and seamless integration with the G8X body lines
  • Complements other carbon fiber upgrades including spoilers, side skirts, and front splitters