Carbon Fiber Rear Bumper Extensions – BMW F80 M3 / F82 F83 M4
Add subtle aggression to your rear fascia with these Carbon Fiber Rear Bumper Extensions, designed to trace the factory bumper contours for a clean, OEM+ look. Crafted from genuine 2×2 twill carbon fiber and finished with a UV-resistant high-gloss clear coat, they enhance visual width while maintaining seamless integration.
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Key Features
• Full replacement-style rear extensions, driver and passenger side
• Made from real carbon fiber with a 2×2 twill weave pattern
• UV-resistant high-gloss clear coat for lasting clarity
• Precision molded for direct fitment; drilling required for installation
• Lightweight yet rigid—designed to match factory lines perfectly
• Matte or forged carbon finish options available upon request
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Compatible Models
• BMW F80 M3 Sedan (2014–2018)
• BMW F82 M4 Coupe (2015–2020)
• BMW F83 M4 Convertible (2015–2020)
Engineered specifically for F8X rear bumpers. Not compatible with non-M models or later-generation chassis (e.g., G8X).
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What’s Included
• (2) Carbon Fiber Rear Bumper Extensions (Left + Right)
• Installation hardware not included on most products
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Why Buy From Eterna Motorworks
Eterna Motorworks is the standard in premium aftermarket automotive parts and services. With over a decade of hands-on experience, we’ve earned the trust of enthusiasts and professional builders worldwide by delivering unmatched quality, precision fitment, and long-term credibility. Every product we offer meets the highest standards in styling, performance, and reliability—on the street and on the track.
If you’re building with precision and intent—welcome to the team.
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Professional installation is highly recommended.
Installation hardware not included on most products.
For full fitment, installation, and store policy details, please refer to our 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 Rear Bumper Extensions – BMW F80 M3 / F82 F83 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.
