Performance M
Maxton Design Gloss Piano Black Side Skirt Extensions, Side Splitters, Side Blades/Side Diffusers for BMW M4 F82 Coupe 2014-2020 - ABS Plastic Rocker/Sill Extensions (Pair) - Mounting Kit Included
Maxton Design Gloss Piano Black Side Skirt Extensions, Side Splitters, Side Blades/Side Diffusers for BMW M4 F82 Coupe 2014-2020 - ABS Plastic Rocker/Sill Extensions (Pair) - Mounting Kit Included
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 BMW M4 F82 Coupe a lower, wider stance with premium piano black rocker extensions designed to suit 2014 to 2020 models. Precision‑made by Maxton Design for the F82 platform, these side blades sharpen the profile with clean, motorsport‑inspired lines that tie in beautifully with front lips and rear diffusers. The look is aggressive yet tasteful, delivering that factory‑plus vibe enthusiasts want.
Constructed from impact‑resistant ABS thermoplastic, these sill extensions are lightweight, tough and built for daily road use. The high gloss black finish matches other aero add‑ons for a cohesive styling package. We run these on our own builds at MJ Modifications and customer feedback on fit and finish has been excellent.
Why enthusiasts choose these F82 side blades
- Vehicle specific for BMW M4 F82 Coupe 2014, 2015, 2016, 2017, 2018, 2019, 2020
- Piano black high gloss surface for a premium, factory‑style appearance
- ABS construction for strength, light weight and flexibility
- Visually lowers the car and enhances the stance with aero‑inspired styling
- Pairs perfectly with front splitters, rear diffusers and spoilers
- Includes fixings and a fitting guide for a straightforward installation
What you receive
- Left and right rocker panel extensions
- Mounting hardware
- Fitting manual
Compatibility
Fits only BMW M4 F82 Coupe 2014 to 2020.
Fitting and installation
Professional installation is recommended for the best alignment and finish. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote by emailing info@mjmodifications.co.uk.
Material and care
Manufactured from ABS, a durable automotive‑grade plastic that provides useful flexibility for normal road conditions. As with any exterior aero part, harsh impacts can cause damage. Consider ground clearance, especially on lowered cars. Products arrive with a protective film that should be removed after test‑fitting to reveal the high gloss surface.
Fitting manual
Download the installation guide
Popular search terms
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