G8x Carbon Diffuser Trim Extension
BMW G8X M3 / M4 Carbon Fiber Diffuser Extension Trim
Enhance the rear-end presence of your G8X with the Carbon Fiber Diffuser Extension Trim, designed to deliver a sharper, more aggressive finish to your factory or aftermarket diffuser. Crafted from premium 2x2 weave pre-preg carbon fiber, this extension trim perfectly complements the natural body lines of the G80 M3 and G82/G83 M4.
With its precise fitment and sleek contours, the diffuser trim extends the visual width of your rear bumper — adding a race-inspired look while maintaining OEM-level quality. Finished in a high-gloss UV-resistant clear coat, it resists fading and maintains a deep carbon shine over time.
Key Features:
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Fits BMW G80 M3 / G82 G83 M4 (2021+)
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Designed to pair seamlessly with OEM or aftermarket diffusers
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Lightweight pre-preg carbon fiber construction
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Gloss UV-protected clear coat for lasting durability
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Enhances rear-end depth and width for a more aggressive aesthetic
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Simple bolt-on installation with OEM mounting points
Pairs well with
In stock! Ships within 1-2 business days.
Complimentary shipping & returns
G8x Carbon Diffuser Trim Extension
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