Performance M
Maxton Design Gloss Black Side Skirts, Side Skirt Extensions & Splitters/Side Blades (Rocker/Sill Extensions) for BMW X4 G02 M Sport/M Pack 2018-2021 - ABS - Pair with Mounting Kit & Fitting Manual
Maxton Design Gloss Black Side Skirts, Side Skirt Extensions & Splitters/Side Blades (Rocker/Sill Extensions) for BMW X4 G02 M Sport/M Pack 2018-2021 - ABS - Pair with Mounting Kit & Fitting Manual
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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High-gloss black rocker extensions for BMW X4 G02 M Pack 2018 to 2021 by Maxton
Transform the side profile of your BMW X4 G02 with premium high-shine black rocker panel extensions from Maxton. These sleek aero side blades sit along the factory sills to give a lower, more purposeful stance, sharpening the shoulder lines and delivering that clean OEM+ look enthusiasts want for their 2018, 2019, 2020 and 2021 M Package cars.
Built from robust ABS polymer for daily use, these sill extensions pair the durability you need with a deep gloss finish that ties in perfectly with other Maxton aero such as front splitters and rear valances for a balanced, cohesive appearance.
We have installed these on customer X4 G02 vehicles and the feedback has been outstanding. Fitment is vehicle-specific for the M Sport exterior, the finish is superb and the transformation is instant.
Highlights
- Vehicle-specific for BMW X4 G02 with M Sport exterior trim, model years 2018 to 2021
- High-gloss black finish for a premium, motorsport-inspired appearance
- ABS construction for strength and flexibility during everyday driving
- Designed to visually lower the car and enhance the side profile
- Hardware and instructions included for a straightforward installation
- Supplied with a protective film to keep the surface pristine until fitted
Compatibility
Fits only: BMW X4 G02 with M Sport styling 2018 to 2021.
What is included
- Pair of rocker panel extensions side blades
- Mounting kit
- Fitting manual
Material and finish
ABS with a high-gloss black surface. The material offers excellent impact resistance and flexibility, helping maintain fit and finish through normal road use. A thin protective film is applied for transport. Remove this after installation to reveal the deep gloss surface.
Installation
Professional fitting is recommended for perfect alignment and secure fastening in line with the manufacturer’s guidance. For expert installation, choose MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.
Fitting manual: Download here
Why this upgrade
If you are searching for X4 G02 sill extensions, rocker extensions, side splitters, side lips, side blades, body styling kit for BMW X4, gloss black sill covers or M Pack aero add-ons, this Maxton solution delivers the refined factory-plus look with the quality finish you expect.
Helpful search terms
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Notes
Please verify your vehicle is the BMW X4 G02 with M Sport styling for model years 2018 to 2021 before ordering.
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