


G80 M3 G82 M4 Type 1 Carbon Fiber Rear Diffuser
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BMW G80 M3 G82 M4 Type 1 (MP Style) Dry Carbon Fiber Rear Diffuser
OE-Grade Dry Carbon | OEM+ Motorsport Design
Stocked in California — Ships in 1–2 Business Days
Upgrade the rear profile of your BMW G80 M3 or G82/G83 M4 with the LAB Type 1 (MP Style) Rear Diffuser, designed to enhance the factory bumper with a sharper, more aggressive OEM+ appearance.
Inspired by motorsport aerodynamics, this diffuser adds depth, definition, and balance to the rear end while following the original bumper lines so the upgrade feels like a natural extension of the car.
Manufactured from OE-grade pre-preg dry carbon fiber with a glossy finish, this diffuser offers superior strength, reduced weight, and consistent weave quality compared to traditional wet carbon parts.
Key Features
✔ OE-Grade Pre-Preg Dry Carbon Fiber
Lightweight motorsport-grade carbon fiber with superior rigidity and perfect weave alignment.
✔ MP Style OEM+ Design
Enhances the rear bumper while maintaining the factory aesthetic.
✔ High-Gloss UV-Resistant Finish
Deep glossy clear coat protects the carbon fiber and preserves long-term shine.
✔ Precision G8X Fitment
Designed to integrate seamlessly with the factory rear bumper.
Why OE-Grade Dry Carbon?
LAB carbon components are manufactured using the pre-preg dry carbon process used in OEM performance parts and supercars. NOTE: IT IS GLOSS FINISH
This process produces parts that are:
• Lighter than traditional wet carbon
• Stronger and more rigid
• Consistent weave alignment
• Cleaner finish with minimal excess resin
The result is a stronger, lighter, and more precise carbon fiber component built for modern performance cars.
LAB Carbon Standard
At Legendary Auto Builders, we specialize in dry carbon fiber components engineered for modern performance vehicles. Every carbon product we offer is selected for fitment, weave quality, and durability, ensuring it meets the expectations of high-end builds and performance shops worldwide.
Vehicle Fitment
BMW G80 M3
BMW G82 M4
BMW G83 M4
Installation
• Professional installation recommended

G80 M3 G82 M4 Type 1 Carbon Fiber Rear Diffuser
We’ve got you.
Whether it’s fitment questions, order updates, or install guidance, our team’s here to make sure you get the right parts, the first time. Fast replies, real support, no runaround.
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Shipping Information
We ship fast and nationwide. Most in-stock items leave our SoCal warehouse within 1–3 business days. You'll get tracking as soon as it’s on the way. Need it quicker? Expedited options are available at checkout.
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Customer Support
Questions about your order? Our support team is here to help every step of the way. Reach us by email or DM.
Fast responses, real solutions, no bots.
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Contact Us
Whether it’s about your order, install guidance, or wholesale inquiries, don’t hesitate to reach out.
📞 Phone: +1 (949) 371-5212
📧 Email: orders@legendaryautobuilders.com
📍 Visit Us: 21087 Commerce Pointe Drive, Walnut, CA 91789We’ll always do our best to get back to you quickly and take care of you the right way.

FreshhKiicks Install
When it comes to proper builds, FreshhKiicks knows what is takes to stand out. That's why he chose to go with LAB parts for his LCI X3M.
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FAQs
Do you offer financing or payment plans?
Yes. At checkout, you can use Shop Pay Installments or Affirm to split your purchase into easy monthly payments. Financing options, including potential 0% interest plans, are shown during checkout and are subject to approval.
Will this part fit my BMW?
Yes. Every product we sell is verified for specific BMW models and chassis. If you want extra peace of mind, you can send us your model, year, or VIN and our team will personally confirm fitment before you order. BMW fitment accuracy is a priority at Legendary Auto Builders.
Are your parts OEM-quality or aftermarket replicas?
We only carry high-quality aftermarket parts that meet or exceed OEM standards. Each product page clearly outlines materials, construction, and finish so you know exactly what you’re getting. We do not sell low-grade replicas or poorly made components.
Where do you ship from and how long does shipping take?
Most in-stock orders ship from our California warehouse within 1–2 business days. Standard U.S. delivery typically takes 3–7 business days depending on location. Made-to-order or specialty items may require additional production time, which is always noted on the product page.
Can I install this myself, or do I need a professional?
Many of our products are designed for direct bolt-on installation and can be installed at home with basic tools. For more complex parts—such as aero components or performance upgrades—we recommend professional installation for best results. If you have questions about install difficulty, just reach out.
What happens if the part doesn’t fit my vehicle?
If there’s a fitment issue due to an error on our end, we’ll make it right. Our team will help resolve the issue quickly, whether that means an exchange or another solution. Fitment accuracy matters to us, and we stand behind the products we sell.
Are your products tested for quality and durability?
Yes. All products go through quality checks and are sourced from trusted manufacturers. We work closely with suppliers and installers to ensure every part meets our performance and durability standards before it ever reaches your car.
Do your products come with a warranty?
Most items include a warranty covering manufacturing defects. Warranty length and coverage details vary by product and are listed on the product page. If you ever have a concern, our support team is here to help.

