CT CARBON
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
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
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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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.
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