GTR Carbon Fiber Duckbill Spoiler – BMW G80 M3 / G20 3 Series
Originally developed under Eterna Bespoke, the in-house product development division of Eterna Motorworks, the GTR Duckbill Spoiler made its debut as part of the G80 M3 GTR Widebody Program.
Constructed from carbon fiber, the GTR Duckbill Spoiler was designed for those seeking a more substantial rear profile without committing to a full wing. Its raised profile extends beyond a traditional trunk spoiler, giving the rear of the G80 M3 and G20 3 Series a more aggressive presence while maintaining a clean, integrated design.
The GTR Duckbill can be paired with the complete GTR Widebody Program or installed independently on any compatible BMW G80 M3 or G20 3 Series. The GTR Widebody Kit is not required for installation.
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Key Features:
• Originally developed for the G80 M3 GTR Widebody Program
• Carbon fiber construction
• Raised, extended duckbill profile
• Designed and manufactured in the USA
Available as part of the complete GTR Widebody Program — click here to explore the full conversion.
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Compatible Models:
• BMW G80 M3 (2021–Present, Sedan) – Base & Competition
• BMW G20 3 Series (2019–Present, Sedan)
Designed specifically for compatible BMW G80 and G20 sedan applications.
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What’s Included:
• (1) GTR Carbon Fiber Duckbill Spoiler
• Installation hardware not included
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SHIPPING:
• Worldwide shipping and local pickup available
• Made to order; production and shipping times vary per order
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Professional installation is highly recommended.
This is a special-order item and cannot be canceled once the order has been placed.
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Why Buy From Eterna Motorworks:
Eterna Motorworks specializes in premium aftermarket automotive parts, vehicle development, and installation. With more than a decade of hands-on experience, we work with enthusiasts and professional builders worldwide to provide carefully selected products with an emphasis on design, fitment, and quality.
Every product we offer is chosen or developed with the same standard we apply to our own builds.
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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.
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.