BMW 4 Series G22/G23 Side Skirts & Side Skirt Extensions Gloss Piano Black – M Performance (MP) Style Rocker Panel/Sill Extensions, Side Splitters & Blades – BLAK by CT Carbon ABS – Fits 2020+ Coupe & Convertible

Elevate your BMW 4 Series stance with BLAK by CT Carbon rocker extensions

Give your G22 or G23 a sharper, lower-looking profile with BLAK by CT Carbon side skirt extensions in a deep piano black finish. These M Performance-inspired aero blades are crafted from durable ABS, delivering a premium OEM-plus look that transforms your coupe or convertible without sacrificing everyday usability.

Compatible models

• BMW 4 Series G22 (Coupe) — 2020 onwards
• BMW 4 Series G23 (Convertible) — 2020 onwards

Why choose these sill extensions

• Striking piano black sheen for a clean, factory-style appearance
• ABS construction for strength, longevity and consistent fitment
• M Performance-inspired styling that complements the 4 Series body lines
• Designed by BLAK by CT Carbon for quality you can see and feel

We have fitted these aero skirts on customer cars and our own builds at MJ Modifications. Feedback has been excellent: tight alignment, rich gloss depth and a genuinely premium finish that completes the side profile.

Fitting service

Professional installation recommended. Book your fitting with MJ Modifications in Warwickshire — request a quote at info@mjmodifications.co.uk.

Search-friendly details

BMW G22/G23 side skirt extensions, sill extensions, rocker panel extensions, side splitters, side blades, aero skirts, M Performance inspired body styling, piano black side skirts for BMW 4 Series, aftermarket body kit add-ons for 4 Series 2020+, coupe and convertible styling upgrades.