Elevate the rear stance of your G8X with MP Style Carbon Fiber Rear Extensions. Crafted from real 2×2 twill carbon fiber and finished with UV-stable gloss, these sleek extensions clip directly into the lower bumper sides to accentuate body lines, give a wider look, and reflect M Performance styling—without altering OEM structure.

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Key Features

• MP Style side extensions for the lower rear bumper

• Made from real carbon fiber with 2×2 twill weave and glossy UV-protective finish

• Lightweight yet stiff for long-term shape retention

• Direct clip-in installation—no double-sided tape or fabrication required

• Secure OEM-style fit for lasting durability

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Compatible Models

• BMW G80 M3 Sedan (2021–Present)

• BMW G82 M4 Coupe (2021–Present)

• BMW G83 M4 Convertible (2021–Present)

These extensions are designed specifically for the G8X rear bumper geometry. Not compatible with non-M G8X models or prior-generation vehicles.

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What’s Included

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

• 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 craftsmanship, we’ve earned the trust of enthusiasts and professional builders worldwide through exceptional quality, precision fitment, and enduring credibility. Our products are thoughtfully curated to raise the bar in performance, aesthetics, and reliability—on both street and track.

If you’re building with intention and detail—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 the build the right way with Eterna Motorworks.