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Aurenzio

BMW F80 M3/F82/F83 M4 Carbon Fiber AP Under Tray Rear Diffuser

BMW F80 M3/F82/F83 M4 Carbon Fiber AP Under Tray Rear Diffuser

$1,499.99 USD
$1,499.99 USD
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Shipping calculated at checkout.
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  • Financing Available
  • 14 day Return

Description

Carbon Fiber AP Under Tray Rear Diffuser – BMW F80 M3 / F82 F83 M4

Race-Inspired Design. Street-Ready Function.

Upgrade the rear end of your BMW F80 M3 or F82/F83 M4 with the Carbon Fiber AP Under Tray Rear Diffuser—a high-performance component engineered to elevate both aerodynamics and aesthetics. Precision-crafted from premium carbon fiber, this diffuser improves airflow, adds rear-end stability, and delivers a bold, track-inspired appearance that sets your BMW apart.

Key Features

✅ Premium Carbon Fiber Construction
Built with high-quality carbon fiber featuring a tight, uniform weave. Available in gloss or matte finish for a sophisticated look that resists fading and yellowing.

✅ Integrated Under Tray Design
Unlike standard diffusers, this version extends beneath the car, optimizing airflow under the chassis. The result? Reduced drag and improved aerodynamic efficiency.

✅ Enhanced Downforce & Rear-End Stability
Engineered to manage high-speed airflow and reduce lift. The diffuser improves traction and stability—ideal for spirited driving, cornering, or track use.

✅ Lightweight & Durable
Designed to be strong yet incredibly light, helping reduce weight at the rear without compromising strength or performance.

✅ Precision OEM Fitment
Fits seamlessly on the BMW F80 M3 and F82/F83 M4 with no modifications required. Clean, flush lines ensure a perfect match with the factory bumper.

✅ UV & Weather Resistant Coating
Treated with a UV-protective clear coat to preserve the carbon fiber finish and protect against environmental damage, fading, and cracking over time.

Benefits

  • 🏁 Functional Aero Gains – Creates effective downforce while minimizing turbulence

  • ⚡ Performance-Oriented Weight Savings – Less weight, more response

  • 🧩 OEM-Level Fit & Finish – Hassle-free install with professional-level aesthetics

  • 🔥 Aggressive Styling – Adds motorsport character to your rear profile

Fitment

  • BMW F80 M3 (2015–2018)

  • BMW F82 / F83 M4 (2015–2020)

Bring the rear of your BMW to life with the Carbon Fiber AP Under Tray Rear Diffuser from Aurenzio.
Engineered for performance. Styled for impact. Built to stand out.

Carbon Fiber AP Under Tray Rear Diffuser – BMW F80 M3 / F82 F83 M4

Race-Inspired Design. Street-Ready Function.

Upgrade the rear end of your BMW F80 M3 or F82/F83 M4 with the Carbon Fiber AP Under Tray Rear Diffuser—a high-performance component engineered to elevate both aerodynamics and aesthetics. Precision-crafted from premium carbon fiber, this diffuser improves airflow, adds rear-end stability, and delivers a bold, track-inspired appearance that sets your BMW apart.

Key Features

✅ Premium Carbon Fiber Construction
Built with high-quality carbon fiber featuring a tight, uniform weave. Available in gloss or matte finish for a sophisticated look that resists fading and yellowing.

✅ Integrated Under Tray Design
Unlike standard diffusers, this version extends beneath the car, optimizing airflow under the chassis. The result? Reduced drag and improved aerodynamic efficiency.

✅ Enhanced Downforce & Rear-End Stability
Engineered to manage high-speed airflow and reduce lift. The diffuser improves traction and stability—ideal for spirited driving, cornering, or track use.

✅ Lightweight & Durable
Designed to be strong yet incredibly light, helping reduce weight at the rear without compromising strength or performance.

✅ Precision OEM Fitment
Fits seamlessly on the BMW F80 M3 and F82/F83 M4 with no modifications required. Clean, flush lines ensure a perfect match with the factory bumper.

✅ UV & Weather Resistant Coating
Treated with a UV-protective clear coat to preserve the carbon fiber finish and protect against environmental damage, fading, and cracking over time.

Benefits

  • 🏁 Functional Aero Gains – Creates effective downforce while minimizing turbulence

  • ⚡ Performance-Oriented Weight Savings – Less weight, more response

  • 🧩 OEM-Level Fit & Finish – Hassle-free install with professional-level aesthetics

  • 🔥 Aggressive Styling – Adds motorsport character to your rear profile

Fitment

  • BMW F80 M3 (2015–2018)

  • BMW F82 / F83 M4 (2015–2020)

Bring the rear of your BMW to life with the Carbon Fiber AP Under Tray Rear Diffuser from Aurenzio.
Engineered for performance. Styled for impact. Built to stand out.

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ABOUT US

Aurenzio is more than just an aftermarket parts supplier—it’s a brand built by enthusiasts, for enthusiasts. We believe every car deserves to reflect the passion of its driver, which is why we focus on delivering premium, precision-engineered parts that bring out the best in performance, style, and individuality.

From carbon fiber aero to performance upgrades, every product we offer is carefully selected and tested to meet the highest standards of quality and fitment. Whether you drive a European icon, a JDM classic, or a modern performance build, our mission is to provide parts that elevate your ride beyond stock and make every drive an experience.

We’re not here to just sell you parts—we’re here to fuel your journey. Whether you’re chasing lap times, improving street presence, or simply enjoying the build process, our team is dedicated to helping you achieve your vision with expert support and guidance every step of the way.

At Aurenzio, we share the same passion you do: cars aren’t just machines—they’re extensions of who we are. That’s why we’re committed to providing products and service that match the pride you put into your ride.

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FAQ

Are these made from real carbon fiber or just overlays?

All of our products are full carbon fiber. Each product listing specifies the construction material, and we only source high-quality parts that are tested for durability and built to meet or exceed OEM standards.

How long does shipping take and where are orders shipped from?

Shipping times vary by location. U.S. orders typically arrive within 5–7 business days, international orders within 7–16 business days, and made-to-order items may take 1–3 weeks. Full delivery details are provided in your confirmation email. For any questions, reach us at aurenzioservice@gmail.com.

Do I need a professional to install, or can I do it myself?

Many of our parts are designed for simple bolt-on installation and can be done at home with basic tools. For more complex items, such as aero kits or performance components, we recommend professional installation to ensure the best fit and results. Each product page includes installation notes and difficulty levels.

Are your parts tested for quality and durability?

Yes — every product goes through strict quality checks and is either TUV-certified, ISO-certified, or tested by our in-house team and trusted installers. We only offer parts we’d confidently run on our own cars.

What if the product doesn’t fit?

We offer easy, hassle-free returns within 14 days of delivery. If the fitment issue is on our end, we’ll cover return shipping. For other cases, exchanges are simple. Full details can be found in our Returns & Warranty Policy

WHY ENTHUSIASTS CHOOSE US

At Aurenzio, we provide high-quality, precision-crafted parts that upgrade both performance and style—backed by knowledgeable support and a deep passion for the automotive community. We don’t just supply parts; we help you build your vision.

Perfect Fitment Every Time: Each part is designed and tested to match your vehicle’s specifications for a seamless fit.

Uncompromising Quality: We use premium carbon fiber, forged metals, and components that are rigorously performance-tested.

Dedicated Customer Care: Our team of specialists is ready to assist with expert guidance and personalized support.

Trusted Worldwide: From everyday drivers to standout show builds, our parts are installed on enthusiast vehicles across the globe.