BMW M4 G83 & 4 Series G23 Convertible Carbon Fibre/Fiber Rear Boot Lip/Ducktail Spoiler – CT Design Gloss Pre-Preg – Trunk/Decklid Lip Wing – 2021+ Cabrio OEM+ Fit

Rear Boot Lip for G83 Cabrio and G23 Convertible by CT Design

Elevate the look of your BMW convertible with this premium CT Design rear lip in high gloss pre-preg carbon. Precision formed for the G-series cabriolet tailgate, it adds a sharp, motorsport-inspired edge and a purposeful stance without overpowering the factory lines. Lightweight, rigid and beautifully finished, it delivers a classy, high-end upgrade that looks right at home on both daily drivers and weekend toys.

Compatible Models

• 2021 onward G83 M4 Convertible
• 2021 onward G23 4 Series Convertible

Why choose this rear lip

• Made from genuine pre-preg carbon with a deep gloss finish for a premium OEM-plus look
• Contours match the boot lid for a tidy, tight fit and a clean installation
• Subtle aerodynamic enhancement with a sportier rear profile
• Durable clear coat for long-lasting shine and easy maintenance

Real-world results

We have fitted this CT Design boot lip on customer vehicles and on our own demos. Feedback has been consistently excellent on fitment, weave quality and overall finish. It transforms the rear end with a refined, performance-led appearance.

Important note for convertibles

Included protective rubbers must be installed on the boot lid to prevent contact when operating the folding roof. This protects both the spoiler and your paintwork as shown in the final product image.

Professional fitting available

For a flawless result, book installation with MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk.

Search-friendly terms

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