BMW M4 Convertible G83 & 4 Series Convertible G23 Carbon Fibre/Fiber Boot Trunk Lip Spoiler | CT Design Gloss Pre-Preg Rear Decklid Wing | 2021+ Cabriolet OEM Style Fitment Rear Edge Spoiler Performance Aero M440i 430i

CT Design carbon rear lip for G83 M4 Convertible and G23 4 Series Cabriolet

Transform the tail of your drop-top with this premium CT Design carbon rear lip. Crafted in high-gloss pre-preg carbon for a deep, uniform weave and a lightweight, motorsport-inspired look, this boot lip spoiler delivers an aggressive yet OEM-plus finish that complements the factory lines perfectly. Our team has fitted this on customer cars and in-house builds with superb results, and feedback on fit and finish has been consistently excellent.

Why enthusiasts choose this boot lip

• Pre-preg carbon construction for a crisp weave, strength and low weight
• High-gloss finish for a premium, showroom-ready appearance
• Model-specific profile for clean alignment to the boot lid
• Enhances rear-end presence with a subtle performance edge
• Ideal styling upgrade for daily drivers and show builds alike

Compatibility

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

Search-friendly terms to help you find the right part

Rear lip spoiler, carbon boot lip, decklid spoiler, carbon rear wing lip, gloss carbon weave, pre-preg carbon fibre aero, rear edge spoiler, performance styling upgrade, cabriolet boot spoiler, trunk lip spoiler, CT Design carbon lip, aerodynamic add-on for G83 and G23.

Important note for folding roof models

We supply protective rubbers that must be fitted to your boot lid to prevent contact when the roof operates. Please refer to the final product image for placement.

Fitting and support

Professional installation is recommended for best results. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.