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BMW M3/M4 F80 F82 F83 F8X (2014-2020) Gloss Black Side Skirts – M Performance Style Side Splitters, Sill/Rocker Panel Extensions, Side Blades – High Gloss Piano Black Aero Body Kit Trim

BMW M3/M4 F80 F82 F83 F8X (2014-2020) Gloss Black Side Skirts – M Performance Style Side Splitters, Sill/Rocker Panel Extensions, Side Blades – High Gloss Piano Black Aero Body Kit Trim

£99.00
£99.00
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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.

Transform the profile of your F8x with high gloss sill extensions that deliver an aggressive, OEM-plus look without compromising everyday usability. Finished in a deep piano black, these M Performance inspired side blades sharpen the stance, visually lower the car and tie in perfectly with splitters and diffusers for a cohesive aero kit upgrade.

  • M Performance inspired styling for a factory-plus appearance
  • Mirror-gloss black finish that complements trims and shadowline details
  • Designed for precise fitment on F80, F82 and F83 platforms
  • Durable construction for daily use and all-weather driving
  • Enhances side profile and reduces the visual gap above the sills

Compatibility:

  • BMW M3 F80 saloon 2014 to 2020
  • BMW M4 F82 coupe 2014 to 2020
  • BMW M4 F83 convertible 2014 to 2020

Also known as side splitters, rocker panel extensions, sill blades and side aero trims, this upgrade is a favourite for owners chasing that track-inspired, road-friendly look. We have fitted these in-house on our own builds and numerous customer cars, and the feedback has been consistently excellent for both finish and fit.

Why choose this upgrade:

  • Instant visual impact with a premium glossy black surface
  • Pairs perfectly with front lips and rear diffusers to complete your body kit
  • OEM-plus styling that suits subtle street builds and full performance setups

Professional fitting recommended. MJ Modifications offer installation at our Warwickshire workshop. Request a fitting quote via info@mjmodifications.co.uk.

Notes: For F8x M3 and M4 models only. Please verify your model and year before ordering.

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