Gloss Black Dual Exit Rear Diffuser – BMW G20 3 Series
Upgrade the rear stance of your G20 with this gloss black dual-exit rear diffuser. Designed specifically for the M Sport bumper configuration, this diffuser delivers aggressive aero styling and refined presence — a high-impact addition that retains OEM integration without compromising fit.
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Key Features
• Gloss black painted finish for deep contrast and premium aesthetic
• Dual-exit design enhances width and visual dynamics of the rear bumper
• Durable ABS/PP construction engineered for street driving and daily use
• Direct-fit simplicity — designed specifically for G20 M Sport bumper geometry with mounting points pre-aligned.
• Adds a functional visual accent that mimics motorsport diffuser styling while remaining fully street-legal
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Compatible Models
• BMW G20 3 Series Sedan (M Sport bumper) — model years 2019–2022 (Pre-LCI)
Note: Specifically designed for the M Sport rear bumper and dual-exit or quad-exit exhaust setups; non-M or base models may require fit adaptation.
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What’s Included
• (1) Gloss Black Dual-Exit Rear Diffuser
• Installation hardware not included on most products
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Why Buy From Eterna Motorworks
Eterna Motorworks sets the standard in premium aftermarket automotive parts and services. With over a decade of hands-on experience, we deliver parts built for enthusiasts who demand both style and precision. Our components are crafted for function and finish—on the street and at the track.
If your build calls for refined aggression and perfect fitment—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 the M Sport rear bumper and verify dual-exit or quad-exit geometry before purchase.
For complete fitment specifics, installation guidelines, 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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Gloss Black Dual Exit Rear Diffuser – 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.
