Transform your BMW M3 with CT Design carbon side sills
Give your M3 a sharper, lower and more purposeful look with these CT Design carbon side sills. Precision made from ultra lightweight pre-preg carbon, these full-length aero skirts are a direct swap for the factory black plastic rocker trims, delivering a premium motorsport feel and a clean OEM-plus finish.
We have fitted these at MJ Modifications and the quality, weave consistency and fit are excellent. Customers love the way they tidy up the profile of the G80 saloon and G81 Touring while keeping a refined factory aesthetic.
Why choose these carbon side sills
- High-grade pre-preg carbon construction for a strong, lightweight upgrade
- Designed as a direct replacement for the standard plastic rocker covers
- Enhances the car’s stance with a longer, lower visual line
- CT Design styling for a premium, performance-led appearance
- Smooth, high-gloss carbon finish that pairs perfectly with other exterior upgrades
- Ideal for road or track-focused builds seeking OEM-level fit and finish
Fitment
- BMW M3 G80 saloon 2021 onwards
- BMW M3 G81 Touring 2021 onwards
What this upgrade does for your M3
- Replaces the stock side trims with full carbon rocker panel extensions
- Complements splitters, diffusers and carbon mirror caps for a cohesive aero kit
- Improves side profile with aggressive carbon side blades without looking overdone
Installation
Professional fitting recommended for the best alignment and finish. We offer installation at MJ Modifications in Warwickshire. For a fitting quote, email info@mjmodifications.co.uk.
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