Product Overview
Enhance the rear-end aerodynamics and aggressive styling of your 2020-Present Chevrolet Corvette C8 Z51 / Stingray with the Extreme Online Store (EOS) Performance Style Carbon Fiber Rear Diffuser Lower Fin Trim. Engineered for a precise OEM fitment, these diffuser fins are crafted from premium pre-preg dry carbon fiber, offering superior strength and lightweight performance. The sleek carbon fiber finish complements the Corvette's bold design, giving your vehicle a distinct track-inspired appearance. Perfect for Corvette enthusiasts looking to upgrade their vehicle's aesthetics while maintaining factory-quality installation standards.
Key Features
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Exact Fitment: Designed to fit all 2020-Present Chevrolet Corvette C8 Z51 / Stingray models. (Does NOT fit Corvette C8 E-Ray & Z06 models.)
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EOS Performance Style Design: Enhances the rear diffuser section with a more aggressive, track-inspired appearance.
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Available in Three Finish Options:
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Matte Black: Smooth matte black finish for a clean and understated look.
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Carbon Flash Metallic (CFM): Painted in GM’s OEM Carbon Flash Metallic for a subtle gloss metallic effect that matches factory trim.
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Pre-Preg Dry Carbon Fiber: Lightweight carbon fiber weave with a premium gloss finish for a high-performance aesthetic.
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Material Options:
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Matte Black & Carbon Flash Metallic: Crafted from high-quality ABS plastic for durability and cost-effective styling.
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Carbon Fiber Variant: Made from lightweight pre-preg dry carbon fiber for maximum strength and visual appeal.
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Complete Package Includes:
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2 x Pair of Rear Diffuser Lower Fins (Left & Right)
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1 x Bag of Mounting Hardware
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Brand New Condition: All components are 100% brand new and quality inspected.
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Direct Add-On Installation: Designed for easy screw-on installation using factory mounting points. No modifications required.
Installation Instructions
The EOS Carbon Fiber Rear Diffuser Lower Fin Trim is engineered for a direct screw-on installation with no cutting, drilling, or modifications required. All necessary mounting hardware is included in the package for a secure fit. While installation is straightforward, professional installation is highly recommended to ensure optimal alignment and finish. Please note, an installation manual is NOT included, but our EOS Support Team is available to assist with any installation inquiries.
Vehicle Compatibility
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Make: Chevrolet
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Model: Corvette C8 Z51 / Stingray
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Year Range: 2020, 2021, 2022, 2023, 2024, 2025 (Present)
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Excludes: Corvette C8 E-Ray & Z06 models
About Dry Carbon Fiber
Dry Carbon Fiber vs Wet Carbon Fiber — What’s the Difference?
Not all carbon fiber parts are made the same. The biggest distinction comes down to how the carbon is processed — commonly known as dry carbon and wet carbon. Both use genuine carbon fiber weave, but the production method, finish, and performance are completely different.
Manufacturing Process
Dry carbon fiber parts are produced using a pre-preg (pre-impregnated) carbon cloth, where the exact amount of resin is pre-applied by the manufacturer. These sheets are then vacuum-sealed and cured under high pressure and temperature in an autoclave, removing excess air and resin.
The result is a light, extremely strong, and precisely formed component — the same process used in motorsport and aerospace applications.
Wet carbon fiber, on the other hand, uses a hand-lay or wet-lay method. The carbon cloth is laid into a mold and liquid resin is manually brushed or poured over it before curing. Because it’s not vacuum-bagged or autoclave-cured, there’s usually more trapped resin and air pockets, leading to a heavier part and a less uniform finish.
Weight & Strength
Dry carbon fiber is roughly 30–50% lighter than wet carbon. This is due to the controlled resin ratio — just enough to bind the fibers without unnecessary weight.
By comparison, wet carbon or carbon-over-fiberglass parts can be up to 70% heavier, since excess resin and fiberglass layers add mass without increasing stiffness.
For reference:
- Carbon Fiber Density: ~1.55 g/cm³
- Fiberglass Density: ~2.6 g/cm³
Dry carbon also offers a much higher modulus of elasticity (~125 GPa), giving it outstanding rigidity under stress — ideal for aerodynamic and high-load components.
Visual & Structural Differences
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Backside: A true dry carbon piece will look identical front and back — you can see the same woven pattern throughout.
Wet carbon or fiberglass-backed parts often have a dull, uneven underside with visible fiberglass texture or color variation. -
Edges: Solid dry carbon has clean, uniform black edges.
Wet carbon or overlay parts may show a white or grey line along the edge, revealing the fiberglass underneath — sometimes hidden with black paint trim. -
Finish: Dry carbon typically has a consistent matte or satin finish, while wet carbon can appear glossy but uneven due to hand-applied resin.
