BMW 3 Series G20 M Sport 2019-2022 Side Skirt Extensions/Diffusers – Maxton Design Gloss Black ABS – Saloon/Sedan Rocker Panel Splitters, Sill Extensions, Side Blades/Lip, Aero Body Kit Skirts

Gloss Black Rocker Extensions for BMW G20 3 Series M Sport 2019 to 2022 by Maxton Design

Transform the side profile of your 2019 to 2022 BMW G20 saloon with these Maxton Design gloss black rocker panel extensions. Engineered specifically for the M Sport package, these side splitters deliver a sharper stance, a premium piano black aesthetic and subtle aero gains that complement factory Shadowline trim. If you are searching for G20 sill extensions, BMW 3 Series side blades, gloss black side skirt lips, side apron extensions or BMW M Sport side splitters for the 3 Series saloon, this is the clean, OEM plus solution that looks right at home on the car.

Key benefits

• Tailored fit for the 2019 to 2022 BMW G20 3 Series with M Sport styling
• High gloss black finish for a sleek, factory-style upgrade
• ABS construction for exterior durability and impact resistance
• Enhances the visual width and road presence of your G20
• Pairs perfectly with Maxton front lip spoilers and rear spats for a cohesive body kit look
• Supplied with fixings and a clear installation guide

Compatibility

Designed for BMW 3 Series G20 saloon with M Sport package, model years 2019, 2020, 2021 and 2022. Model-specific rocker trims for precise alignment along the factory sills.

What you receive

• Left and right side splitter panels
• Mounting hardware
• Fitting instructions

Fitting manual: Side Skirt Diffusers Installation Manual

Construction and finish

Manufactured from tough ABS for long-term exterior use. The deep, high-gloss black surface delivers a premium appearance that ties in with M Sport details and black pack styling. Each piece is shipped with a protective film to help prevent marks during transit. Test fit before removing the film, then peel to reveal a pristine finish.

Installation and fitting support

Professional fitting is recommended for the best alignment and secure mounting. For installation, choose MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Proven upgrade

We have supplied and fitted these Maxton side splitters for many G20 M Sport owners and the feedback is consistently positive. Customers praise the perfect fit, the mirror-like black finish and the way the car sits visually lower and wider without being over the top.

Before you order

• Confirm your vehicle is a BMW 3 Series G20 saloon with the M Sport package from 2019 to 2022
• Dry-fit the parts prior to removing the protective film
• Follow the supplied guide and use the included hardware

Search-friendly terms

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