BMW 4 Series F32 F33 Full Carbon Fibre Side Skirts – Side Skirt Extensions/Rocker Extensions/Sill Blades, M Performance (MP) Style for M Sport 2013–2020 Coupe & Convertible/Cabriolet

M Performance inspired rocker extensions for 4 Series Coupe and Convertible (F32/F33, 2013–2020)

Level up your 4 Series with premium full carbon aero from CT Carbon. These sleek sill extensions deliver that coveted OEM plus look with a sharper stance, deeper side profile and a proper motorsport vibe. Real carbon construction, precise fit for the M Sport package, and styling that complements the factory body lines perfectly. We run these in-house and the fit and finish impress every time. Our customers love the transformation.

Why you will love them

• Authentic full carbon weave for a high-end finish and lightweight construction
• M Performance inspired styling for a factory-correct, aggressive appearance
• Enhances the side profile with a lower, wider visual stance
• Engineered for consistent fitment on M Sport cars
• Durable clear-coated carbon designed for daily use
• Perfect pairing with front splitters and rear diffusers for a complete aero package

Fitment

• Chassis: F32 Coupe and F33 Convertible
• Model years: 2013 to 2020
• Designed for M Sport models

What you get

• Set of two carbon sill extensions (left and right)

Trusted by enthusiasts

Installed by MJ Modifications on numerous customer cars, these carbon side blades consistently deliver great alignment and a premium finish. Feedback has been outstanding for both styling and quality.

Professional fitting available

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Search-friendly details

Keywords many owners use: 4 Series F32 F33 coupe cabriolet rocker extensions, carbon sill trims, side blades, side skirt extensions, performance body kit, M Sport aero, ground effects, carbon side lips, BMW 4er upgrade, aftermarket styling for 2013 2014 2015 2016 2017 2018 2019 2020 models.