Maxton Design Gloss Black ABS Side Skirts, Side Splitters, Side Blades, Side Skirt/Sill Extensions, Rocker Panel Splitters for BMW 1 Series F40 M135i xDrive & M Sport Hatchback (2019+)

Gloss Black Side Blades for BMW 1 Series F40 M135i and M Sport – Premium ABS Sill Extensions by Maxton Design

Give your BMW F40 a sharper, lower look with these gloss black side blades from Maxton Design. Precision-formed ABS sill extensions deliver a clean, factory-style finish with a sportier stance and crisp lines along the rocker panels. Tough, lightweight and built for daily use, they are the ideal exterior styling upgrade for the M135i xDrive and M Sport variants.

Compatible Models

• BMW 1 Series F40 M Sport – 2019+
• BMW 1 Series F40 M135i – 2019+

Why Enthusiasts Choose These Sill Extensions

• High gloss black finish that ties in with factory trims for a seamless, OEM-plus look
• ABS thermoplastic construction for strength, durability and resistance to everyday road use
• Vehicle-specific design for the BMW F40 platform with a neat, secure fit
• Instant visual drop and wider appearance for a more aggressive side profile
• Simple bolt-on upgrade with hardware and instructions included

What’s Included

• 1 x pair of Maxton Design side skirt extensions
• Fitting kit
• Installation manual

Installation and Support

Professional fitting is recommended for the best alignment and finish. Official guide here: Maxton Design Side Skirts Fitting Manual.

Want it installed for you? MJ Modifications offers expert fitting in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Trusted by Our Team and Customers

We have fitted these on our own builds and on client cars. Feedback has been consistently positive: great fitment, deep gloss finish and a premium, cohesive look that elevates the BMW 1 Series F40 without appearing overdone.

Useful Details

• Manufactured from ABS plastic for rigidity with natural flexibility to handle minor knocks
• Supplied with a protective film to guard the surface in transit. Remove after installation for a flawless shine

Search Terms Buyers Use

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