Performance M
Maxton Design Gloss Black Side Skirt Extensions/Diffusers – Sill Extensions, Rocker Panel Splitters, Side Blades/Lip Spoilers for BMW X1 F48 M Sport (M Pack) 2015-2019 (Pair)
Maxton Design Gloss Black Side Skirt Extensions/Diffusers – Sill Extensions, Rocker Panel Splitters, Side Blades/Lip Spoilers for BMW X1 F48 M Sport (M Pack) 2015-2019 (Pair)
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.
Couldn't load pickup availability
Gloss Black Sill Extensions for BMW X1 F48 M Sport 2015 to 2019 by Maxton Design
Give your BMW X1 F48 a sharper, lower look with these Maxton Design gloss black sill extensions. Tailored for the M Sport exterior package, this pair of side blades adds clean, aggressive styling that ties in perfectly with factory black trims for a premium, showroom-ready finish.
We have fitted these in our own workshop and on customer vehicles, and the transformation is instant. The car looks wider and more purposeful, with that sought-after performance aesthetic. Fitment is precise, the gloss surface is beautifully smooth, and the overall result is exactly what X1 M Pack owners want from a subtle body kit upgrade.
Main benefits
- Vehicle specific for BMW X1 F48 with M Sport package, model years 2015, 2016, 2017, 2018, 2019
- High gloss piano black finish for a premium, factory-style appearance
- Durable ABS construction for everyday road use
- Supplied with fixings and instruction sheet for a professional install
- Factory-applied protective film to prevent transport marks
- Enhances the side profile with a lower, wider visual stance
Compatibility
Fits only BMW X1 F48 with M Sport or M Pack exterior, 2015 to 2019.
What you receive
- Pair of sill extensions, left and right
- Fitting hardware
- Installation manual
Why choose this upgrade
If you want a clean, cohesive exterior enhancement without going over the top, these rocker panel splitters are the sweet spot. They complement front and rear styling pieces, work brilliantly with other gloss black accents, and deliver the ground-hugging appearance enthusiasts love. Our customers consistently rate the fit and finish highly, and our technicians have been impressed with the quality and ease of installation.
Installation
Professional fitting is recommended for the best alignment and finish. MJ Modifications offers installation at our Warwickshire workshop. Request a quote: info@mjmodifications.co.uk.
Fitting manual: Download the Maxton Design fitting guide
Care and finish
Items arrive with a thin protective film to guard the surface in transit. Remove after fitting to reveal the high gloss finish. Clean with non abrasive products to maintain the shine.
Material
Manufactured from ABS plastic. This material offers an excellent balance of strength and flexibility for road use while achieving a quality surface finish.
Popular search terms
BMW X1 F48 sill extensions, BMW X1 M Pack side blades, rocker panel splitters X1, gloss black skirt extensions BMW X1, piano black rocker extensions, X1 F48 side lip spoilers, BMW X1 body kit side add ons, Maxton X1 side blades UK, BMW X1 M Sport ground effects, BMW X1 F48 styling upgrade, black side skirts for BMW X1 2015 2019, BMW X1 M styling sill covers, F48 M Sport side lips, BMW X1 tuning parts UK, MJ Modifications BMW X1 fitting Warwickshire.
Share
