CMS Style Gloss Black Rear Diffuser with LED Light – BMW G20 3 Series
Refine and elevate the rear styling of your G20 with this CMS-style gloss black rear diffuser featuring a built-in LED third-brake light. Crafted for performance aesthetics and clean fitment, it brings understated aggression and added visibility without compromising factory bumper contours.
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Key Features
• CMS-style design with integrated LED third-brake light for enhanced visibility and rear-end styling depth.
• Gloss black finish for premium visual impact that complements OEM trims.
• Lightweight ABS/PP or composite construction engineered for direct mount installation with minimal modification required.
• Aggressive diffuser geometry that enhances rear silhouette while maintaining stock exhaust integration.
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Compatible Models
• BMW G20 3 Series Sedan (M Sport bumper) — model years 2019–2022.
Note: Designed for M Sport rear bumper configurations equipped with rear diffuser geometry. Ensure your bumper style matches before ordering.
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What’s Included
• (1) Gloss Black Rear Diffuser with integrated LED third-brake light (single piece)
• 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 craftsmanship, we’ve earned the trust of enthusiasts and professional builders worldwide through uncompromising quality, precise fitment, and lasting credibility. Every part is curated to deliver both styling and performance—whether street-driven or track-ready.
If elevated detail and clean aggression power your build—welcome to the team.
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Professional installation is highly recommended.
Installation hardware not included on most products.
Ensure your vehicle is a G20 3 Series Sedan with a matching rear-bumper layout and M Sport configuration before purchase. For 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 the build the right way with Eterna Motorworks.
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CMS Style Gloss Black Rear Diffuser with LED Light – BMW G20 3 Series
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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.
