BMW M3 G80/M4 G82 G83 Rear Trunk Spoiler Dry Carbon Fiber
Available in stock (20)
Carbon Fiber Rear Trunk Spoiler for 2020+ BMW G80 M3 / 2021+ G82 G83 M4 (Wet & Dry Carbon)
The G8x M3/M4 generation introduced one of the widest, most visually assertive trunk lid surfaces in modern BMW M history — a long, flat trunk deck that defines the G80 Sedan's rear proportions and the G82/G83 Coupe/Convertible's sweeping fastback tail. This carbon fiber rear trunk spoiler is a flow-through design moulded for the G80/G82/G83 trunk lid trailing edge, adding a high-kick carbon wing that detaches rear airflow from the trunk deck surface, increases rear downforce, and introduces a motorsport-grade carbon accent at the G8x's most prominent rear surface. Available in wet-lay or pre-preg dry carbon — choose your spec.
Wet Carbon vs Dry Carbon — Choose Your Build
- Wet Carbon ($599.99): Hand-laid wet-lay carbon fiber with epoxy resin and UV-gloss clear coat. Genuine carbon fiber construction — strong 3×3 weave surface and a meaningful cost saving over pre-preg dry carbon. Ideal for street-focused G8x builds where the visual carbon detail and rear downforce are the priority.
- Dry Carbon ($699.99): Pre-impregnated carbon fiber cloth, heat-cured under pressure — lower resin-to-fiber ratio, stiffer panel, tighter and more uniform 3×3 weave surface. The construction method used in BMW M Performance carbon exterior components. Recommended for track-focused G8x builds or where surface quality and weight are the priority.
Key Features
- G80 M3 / G82 / G83 M4-Specific Fitment: CNC-moulded and real-car tested for the 2020+ BMW G80 M3 Sedan and 2021+ G82 M4 Coupe / G83 M4 Convertible — all three G8x M body styles. Mounts to the factory trunk lid trailing edge with self-tapping screws included.
- Flow-Through Wing Design: High-kick spoiler with a flow-through gap above the trunk lid surface — airflow passes both over and under the wing element, maximising rear downforce efficiency and airflow detachment from the G8x's wide, flat trunk deck at speed.
- Rear Downforce: Spoiler detaches airflow from the G8x's trunk deck, increases rear downforce, and enhances high-speed rear stability on the G80/G82/G83's wide rear axle platform.
- Self-Tapping Screw Installation: Screws included — mounts to the factory G80/G82/G83 trunk lid trailing edge. Professional installation recommended for precise alignment across the G8x's wide trunk lid.
- UV-Resistant High-Gloss Finish (Both Variants): Double-layer UV-protective clear coat on both wet and dry carbon variants — locks in carbon gloss and resists fading and surface hazing over time.
- Export-Grade Packaging: Multi-layer shockproof embedded packaging (3 kg gross) engineered for spoiler delivery across international shipping routes.
Product Specifications
| Feature | Wet Carbon | Dry Carbon |
|---|---|---|
| Price | $599.99 | $699.99 |
| Construction | Wet-Lay Carbon Fiber | Pre-Preg Dry Carbon Fiber |
| Weight | ~3,500 g | ~3,000 g (lighter resin ratio) |
| Surface | 3×3 Twill Weave, UV-Gloss | Tighter 3×3 Twill Weave, UV-Gloss |
| Recommended For | Street builds, visual carbon | Track builds, M Performance spec |
| Fitment: 2020+ BMW G80 M3 Sedan / 2021+ G82 M4 Coupe / G83 M4 Convertible | ||
Note: Fits 2020+ BMW G80 M3 Sedan and 2021+ G82 M4 Coupe / G83 M4 Convertible. Professional installation recommended for precise alignment on the G8x's wide trunk lid. Contact us for wet vs dry carbon guidance if unsure which spec suits your build.
Add a flow-through carbon wing to your G8x M3/M4's trunk deck — add to cart now.
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