


Carbon Fiber Mirror Caps – BMW M240i / M340i / M440i | Eterna Motorworks
Upgrade your ride’s side profile with our Carbon Fiber Mirror Caps, designed to deliver the premium look of real carbon while maintaining direct fitment. Ideal for style-focused builds, these caps add a high-clear-coat gloss finish and precise design to enhance your BMW.
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Key Features
• Overlay/cap design in genuine 2×2 twill carbon fiber with UV-resistant clear coat
• Lightweight yet durable—engineered to match OEM mirror dimensions and mountings
• Designed for plug-and-play installation using factory mirror housing—no cutting or fabrication required
• High-gloss finish adds refined visual depth and builds upon M-series styling cues
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Compatible Models
• BMW G20 M340i Sedan — 2019–Present (LCI update from 2023)
• BMW G22/G23 M440i Coupe/Gran Coupé — 2022–Present
• BMW G42 M240i Coupe — 2022–Present
Please confirm your factory mirror housing shape (M & M Sport trims) before ordering; non-M models may differ.
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What’s Included
• (1) Pair of Carbon Fiber Mirror Caps (Left + Right)
• Installation hardware not included on most products
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Why Buy From Eterna Motorworks
At Eterna Motorworks, we set the standard in premium aftermarket parts. With over a decade of hands-on craftsmanship, we deliver superior quality, precise fitment, and lasting reliability. Our parts are built to elevate your build in both form and function—on street or track.
If integrity-driven and precision-focused upgrades matter to you—welcome to the team.
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Professional installation is highly recommended.
Installation hardware not included on most products.
Ensure your vehicle uses one of the compatible model/chassis combinations listed above.
For full fitment guidance, installation instructions, 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 your build the right way with Eterna Motorworks.
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Quick Answers
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’s the install?
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.
Still have questions?
Reach out anytime. We’re here to help before and after your 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.

