Carbon Fiber LED Rear Diffuser Kit – BMW G82 M4
Transform your M4’s rear with premium style and added functionality. This Carbon Fiber LED Rear Diffuser Kit offers integrated braking illumination paired with bold motorsport-inspired styling—all crafted to mesh precisely with factory bumper contours.
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Key Features
• Full-width rear diffuser with integrated center LED brake light
• Constructed from real carbon fiber with a 2×2 twill weave pattern
• Lightweight yet rigid—ensures structural integrity under rear-end loads
• Direct bolt-on replacement for factory diffuser—wiring and trimming required for LED function
• Creates an eye-catching OEM+ upgrade with functional visual safety enhancements
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Compatible Models
• BMW G82 M4 Coupe — model years 2021–Present
Designed specifically for the G82 body style
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What’s Included
• (1) Carbon Fiber LED Rear Diffuser with pre-wired LED module
• Installation hardware not included on most products
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Why Buy From Eterna Motorworks
Eterna Motorworks sets the standard in premium aftermarket automotive parts and services. With over a decade of hands-on craftsmanship, we’ve earned the trust of enthusiasts and pro builders worldwide through unmatched quality, precision fitment, and enduring credibility. Let your car stand out with performance-level styling that works—on and off the track.
For those who build with intention—welcome to the team.
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Professional installation is highly recommended.
Installation hardware not included on most products.
LED module requires trimming, drilling, and wiring—consult support if needed.
For fitment guidance, installation assistance, and store policy details, please refer to our store policies before purchasing.
Worldwide shipping available upon request.
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Your next mod starts here. Upgrade the build the right way with Eterna Motorworks.
Pairs well with
Carbon Fiber LED Rear Diffuser Kit – BMW G82 M4
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Product Questions
Will this fit my vehicle?
This part is made for the models listed above. If you’re unsure, send us your year, make, and model and we’ll confirm fitment for you.
What’s included?
You’ll receive exactly what’s shown. Hardware is not included unless the product description says otherwise.
How difficult is installation?
We recommend professional installation. If you’re local, you can book an install with us directly. Some parts may need trimming, drilling, or adjustment depending on your setup.
Do you ship internationally?
Yes, we ship worldwide. Contact us if you need help placing an international order.
How do I confirm fitment before ordering?
Fitment details are listed on each product page. If you’re unsure or your build has unique specs, submit the form and our team will verify compatibility before you order.
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With over a decade of hands on experience, a growing portfolio of award winning show builds, and direct relationships with top-tier brands, we make sure you get premium products, trusted service, and real automotive expertise. Our team has built multiple award winning vehicles featured at top tier shows like SEMA and Bimmer Invasion. Everything we offer is tested, trusted, and backed by real world experience.
Eterna Motorworks can source or special-order nearly any component for your build — OEM-fitment parts, performance upgrades, carbon fiber aero, suspension, wheels, and even bespoke options depending on the platform. Click here to contact our team.
