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BMW 4 Series (4er) G22/G23 2020+ Gloss Carbon Fibre/Carbon Fiber Side Skirts – Side Splitters, Rocker Panel/Sill Extensions, Side Blades | Real Carbon Aero Kit for Coupe & Convertible
BMW 4 Series (4er) G22/G23 2020+ Gloss Carbon Fibre/Carbon Fiber Side Skirts – Side Splitters, Rocker Panel/Sill Extensions, Side Blades | Real Carbon Aero Kit for 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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Give your 2020-on BMW G22 coupé or G23 convertible a sharper, lower and more aggressive profile with these gloss carbon rocker extensions. Manufactured from real carbon fibre with a deep, high-gloss clear coat, these aero side blades deliver premium motorsport styling, lightweight construction and a factory-quality finish that elevates the look of any 4 Series.
- Premium carbon fibre construction for lightweight strength and a high-end appearance
- Gloss clear coat for a deep shine that pairs perfectly with other exterior upgrades
- Transforms the side profile with a wider, lower stance and crisp, modern lines
- Designed for the BMW G22 and G23 platform for confident, tidy fitment
- Ideal alongside a front lip and rear diffuser as part of a full body styling package
We’ve fitted these in-house on customer cars and the feedback on fit and finish has been outstanding. If you want an instant visual upgrade that looks OEM-plus and feels genuinely premium, these sill extensions are the perfect choice.
Compatibility
BMW 4 Series G22 (coupé) and G23 (convertible), 2020 onwards.
Finish and material
Real carbon fibre with a high-gloss finish.
Why buy from MJ Modifications
- Tried, tested and loved by our customers
- Hand-picked styling parts that deliver maximum impact
- Friendly support from enthusiasts who know the G22/G23 platform
Fitting service
Professional installation is recommended. Book fitting with MJ Modifications in Warwickshire. For a quote, email: info@mjmodifications.co.uk.
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