BLAK BY CT
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
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
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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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.
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