Performance M
Maxton Design Gloss Piano Black Side Skirts Extensions / Side Splitters for BMW 8 Series G15 Coupe M Sport / M Pack (2018+) – ABS Rocker Panel Sill Blades, Aero Body Kit Upgrade
Maxton Design Gloss Piano Black Side Skirts Extensions / Side Splitters for BMW 8 Series G15 Coupe M Sport / M Pack (2018+) – ABS Rocker Panel Sill Blades, Aero Body Kit Upgrade
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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Gloss Black Side Skirt Extensions for BMW 8 Series G15 Coupe with M Sport
Elevate the look of your 8 Series with premium side skirt extensions that deliver a lower, wider stance and an OEM plus finish. Designed by Maxton to complement the factory body lines, these gloss black rocker panel splitters add aggressive styling and subtle aero presence without overcomplicating the silhouette. If you want a sleek, piano black side blade upgrade for your BMW G15 two door, this is the exterior styling piece you have been searching for.
Compatibility
For BMW 8 Series G15 Coupe equipped with M Sport package, 2018 onward.
Why this upgrade stands out
- High gloss black finish for a premium, factory-style appearance
- ABS construction chosen for strength, durability and weather resistance
- Precision fit for the G15 chassis to enhance side profile and visual width
- Great match for other gloss black trim and body kit components
- Transforms the car’s stance with a clean, performance-focused look
What you receive
- Pair of side skirt extensions side splitters
- Fitting hardware
- Installation guide
Installation guide: Download the fitting manual
Material and finish
Manufactured from ABS for impact resistance and flexibility, then finished in a deep gloss black for that showroom-ready, piano black shine. ABS offers the right balance of strength and pliability which helps it withstand everyday road use.
Professional fitting available
We strongly recommend professional installation to achieve the best alignment and finish. MJ Modifications in Warwickshire can supply and fit. For a fitting quote, email info@mjmodifications.co.uk.
Our experience
We have installed these side skirt extensions on customer G15 builds and the feedback has been excellent. Customers love the OEM plus styling and the seamless match with other gloss black accents.
Protection and care
- Arrives with a thin protective film to prevent cosmetic marks in transit
- Remove the film after test fitting to reveal a clean, scratch free surface
- For maintenance, use pH neutral shampoo and a soft microfibre cloth
Search friendly terms customers use
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Please note that correct fitment requires the M Sport side trims. Professional fitting is recommended.
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