Carbon Fiber Rear Extensions – BMW G80 M3 / G82 M4 | Eterna Motorworks

Eterna Motorworks

Carbon Fiber Rear Extensions – BMW G80 M3 / G82 M4 | Eterna Motorworks

$399.00

{"id":8595937755288,"title":"Carbon Fiber Rear Extensions – BMW G80 M3 \/ G82 M4 | Eterna Motorworks","handle":"bmw-g80-g82-carbon-rear-extensions","description":"\u003cp class=\"p1\"\u003eComplete the side profile of your G80 M3 or G82 M4 with Carbon Fiber Rear Extensions — designed to continue the flow of aggressive side skirts while tying into your rear diffuser and quarter panel lines. These subtle yet striking add-ons enhance the car’s stance, extending the lower rear edge to add depth and balance to your aero kit. Built from real carbon fiber and finished in a deep gloss, they deliver OEM+ aesthetics with motorsport influence.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Rear side skirt extension pair (left + right)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Constructed from real carbon fiber with a 2x2 twill weave pattern\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Real carbon fiber construction with UV-resistant gloss clear coat\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Matches factory body line curvature and profile\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Designed to pair with OEM or aftermarket side skirts\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Matte and forged carbon options available upon request\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Models\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G80 M3 (2021–2025, Sedan) – Base \u0026amp; Competition\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G82 M4 (2021–2025, Coupe) – Base \u0026amp; Competition\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G83 M4 (2021–2025, Convertible)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ci\u003eEngineered to fit G8X side skirt profiles with precision\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eWhat’s Included\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• (1) Pair of Carbon Fiber Rear Extensions (Left + Right)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Mounting tape or hardware may vary by production batch\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Installation hardware not included on most products\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eWhy Buy From Eterna Motorworks\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEterna 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.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re searching for a trusted partner to set your build apart — welcome to the team.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eProfessional installation is highly recommended.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eInstallation hardware not included on most products.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFor full fitment, installation, and store policy details, please refer to our policies before purchasing.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWorldwide shipping available upon request.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eYour next mod starts here. Upgrade your build the right way with Eterna Motorworks.\u003c\/b\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","published_at":"2025-01-16T01:18:47-08:00","created_at":"2025-01-16T01:18:47-08:00","vendor":"Eterna Motorworks","type":"Carbon Fiber Rear Extensions","tags":["BMW","carbon rear extensions","g80 rear extensions","g82 rear extensions","rear extensions","WET CARBON FIBER"],"price":39900,"price_min":39900,"price_max":39900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":45824078545048,"title":"G80 G81 M3","option1":"G80 G81 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class=\"p1\"\u003eComplete the side profile of your G80 M3 or G82 M4 with Carbon Fiber Rear Extensions — designed to continue the flow of aggressive side skirts while tying into your rear diffuser and quarter panel lines. These subtle yet striking add-ons enhance the car’s stance, extending the lower rear edge to add depth and balance to your aero kit. Built from real carbon fiber and finished in a deep gloss, they deliver OEM+ aesthetics with motorsport influence.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Rear side skirt extension pair (left + right)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Constructed from real carbon fiber with a 2x2 twill weave pattern\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Real carbon fiber construction with UV-resistant gloss clear coat\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Matches factory body line curvature and profile\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Designed to pair with OEM or aftermarket side skirts\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Matte and forged carbon options available upon request\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCompatible Models\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G80 M3 (2021–2025, Sedan) – Base \u0026amp; Competition\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G82 M4 (2021–2025, Coupe) – Base \u0026amp; Competition\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• BMW G83 M4 (2021–2025, Convertible)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003ci\u003eEngineered to fit G8X side skirt profiles with precision\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eWhat’s Included\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• (1) Pair of Carbon Fiber Rear Extensions (Left + Right)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Mounting tape or hardware may vary by production batch\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e• Installation hardware not included on most products\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eWhy Buy From Eterna Motorworks\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEterna 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.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIf you’re searching for a trusted partner to set your build apart — welcome to the team.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eProfessional installation is highly recommended.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eInstallation hardware not included on most products.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eFor full fitment, installation, and store policy details, please refer to our policies before purchasing.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eWorldwide shipping available upon request.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e⸻\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eYour next mod starts here. Upgrade your build the right way with Eterna Motorworks.\u003c\/b\u003e\u003cspan\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e"}

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Complete the side profile of your G80 M3 or G82 M4 with Carbon Fiber Rear Extensions — designed to continue the flow of aggressive side skirts while tying into your rear diffuser and quarter panel lines. These subtle yet striking add-ons enhance the car’s stance, extending the lower rear edge to add depth and balance to your aero kit. Built from real carbon fiber and finished in a deep gloss, they deliver OEM+ aesthetics with motorsport influence.

⸻

Key Features

• Rear side skirt extension pair (left + right)

• Constructed from real carbon fiber with a 2x2 twill weave pattern

• Real carbon fiber construction with UV-resistant gloss clear coat

• Matches factory body line curvature and profile

• Designed to pair with OEM or aftermarket side skirts

• Matte and forged carbon options available upon request

⸻

Compatible Models

• BMW G80 M3 (2021–2025, Sedan) – Base & Competition

• BMW G82 M4 (2021–2025, Coupe) – Base & Competition

• BMW G83 M4 (2021–2025, Convertible)

Engineered to fit G8X side skirt profiles with precision

⸻

What’s Included

• (1) Pair of Carbon Fiber Rear Extensions (Left + Right)

• Mounting tape or hardware may vary by production batch

• Installation hardware not included on most products

⸻

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.

⸻

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.

⸻

Your next mod starts here. Upgrade your build the right way with Eterna Motorworks.

Pairs well with

Carbon Fiber Rear Extensions – BMW G80 M3 / G82 M4 | Eterna Motorworks

G80 G81 M3

$399.00

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.