
Carbon Fiber ECU Cover – BMW G80 M3 / G82 M4 | Eterna Motorworks
Complete your engine bay transformation with the Carbon Fiber ECU Cover for the BMW G80 M3 and G82 M4. This panel replaces the dull factory plastic with a sharp, high-gloss carbon overlay — perfectly contoured to match the S58 engine’s ECU mount and its surrounding geometry. Whether you’re chasing a show-ready engine bay or simply cleaning up your build’s aesthetics, this piece delivers OEM+ detail where it counts.
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Key Features
• Real carbon fiber construction with precision-molded fitment
• Constructed from real carbon fiber with a 2x2 twill weave pattern
• Direct replacement for factory ECU cover — no modification required
• UV-resistant gloss clear coat for long-term durability
• Pairs seamlessly with other engine bay carbon upgrades
• Matte and forged carbon options available upon request
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Compatible Models
• BMW G80 M3 (2021–2025, Sedan) – Base & Competition
• BMW G82 M4 (2021–2025, Coupe) – Base & Competition
• BMW G83 M4 (2021–2025, Convertible)
Fits all S58-powered G8X M models
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What’s Included
• (1) Carbon Fiber ECU Cover
• Mounts using factory tabs or adhesive (not included)
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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 part and service we offer is curated to meet the highest expectations in styling, performance, and reliability — both on the road and in the shop.
If you’re searching for a trusted partner to set your build apart — 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 your build the right way with Eterna Motorworks.
Pairs well with

Carbon Fiber ECU Cover – BMW G80 M3 / G82 M4 | Eterna Motorworks
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.