Elevate the side profile of your BMW 3 Series G20/G21 with CT Carbon MP look sill extensions. These premium carbon side skirt extensions add a sharper, lower, more purposeful stance, bringing motorsport-inspired styling to your Saloon or Touring without compromising everyday usability.
- Designed for BMW 3 Series G20 Saloon and G21 Touring with the M Sport exterior.
- Real carbon construction for a lightweight, high-strength upgrade with a high-end finish.
- Precision-moulded aero blades that complement factory lines for a seamless OE+ appearance.
- Transforms the visual width and road presence, tying together front lip and rear diffuser upgrades.
- Trusted by our team and our customers — fitted on builds we manage with consistently excellent feedback.
Whether you call them side skirt splitters, rocker panel extensions, sill trims or aero side blades, this MP style upgrade is the perfect way to complete your body kit and achieve that performance look enthusiasts want for the G20/G21 platform.
Compatibility: BMW 3 Series G20 (Saloon) and G21 (Touring) with M Sport styling.
Installation: Professional fitting recommended for the best alignment and finish. Book your install with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Why buy from us: We’ve installed these on numerous customer cars, and the fit and finish have been consistently impressive. If you’re building a clean OEM+ look or a full aero kit, these carbon sill extensions are the side profile upgrade that ties everything together.
Common search terms: BMW G20 side skirt extensions, BMW G21 sill extensions, 3 Series carbon side blades, rocker extensions, side splitters, MP look skirts, M Sport aero kit, BMW 3er carbon upgrade, G20/G21 body kit parts.
