F8X M3 | M4 Type 1 Rear Carbon Diffuser
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F8X M3 | M4 Type 1 Carbon Rear Diffuser
Stocked and Ships from Southern California in 1–2 Business Days
🏁 Engineered for Performance. Built for Precision.
Enhance the rear profile of your BMW F80 M3 or F82/F83 M4 with The LAB Type 1 Carbon Fiber Rear Diffuser — a sleek, motorsport-inspired upgrade that delivers aggressive aesthetics and aerodynamic refinement without compromising OEM fitment.
Crafted from high-quality standard carbon fiber, this diffuser provides a beautiful weave pattern, deep gloss finish, and lightweight construction. Designed to elevate your M’s appearance, the Type 1 diffuser adds bold contours and visual depth to your rear end — all while maintaining clean lines and everyday drivability.
✳️ Premium Carbon Fiber Construction
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OEM-Matched Weave & Gloss Finish – Seamlessly complements factory-style carbon fiber accessories.
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Lightweight & Durable – Built from strong, reinforced carbon fiber for lasting rigidity and reduced weight.
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UV-Protected Gloss Coating – Prevents yellowing, fading, and discoloration from long-term sun exposure.
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No Brake Light – Clean, simplified look for enthusiasts who prefer a sleek, uninterrupted rear design.
⚙️ Perfect Fitment Guaranteed
Each diffuser is test-fitted on real F8X vehicles to ensure OEM-level precision and alignment. Designed for a straightforward bolt-on installation, it fits flush against the factory bumper with no cutting, trimming, or modifications required.
💨 Aggressive Type 1 Design
The LAB Type 1 Carbon Diffuser features distinct fins and aerodynamic shaping that optimize airflow while giving your F80 or F82 a more assertive stance. The design blends performance and street appeal — transforming your BMW’s rear end into a statement piece.
🔧 Key Features
✅ High-Quality Carbon Fiber Construction
✅ Deep Gloss UV-Resistant Finish
✅ Aggressive Type 1 Fin Design
✅ No Brake Light Opening (Clean Style)
✅ Direct Bolt-On Fitment – No Modifications Required
📦 Application
✔ BMW F80 M3 (2015–2018)
✔ BMW F82 | F83 M4 Coupe & Convertible (2015–2020)
🏆 Why Choose The LAB
At Legendary Auto Builders, every part is California-stocked, test-fitted, and quality-verified to ensure unmatched craftsmanship, precise fitment, and premium finish. When you order from us, you’re getting trusted performance, OEM-grade quality, and dedicated U.S. support.
F8X M3 | M4 Type 1 Rear Carbon 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.
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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.