Maxton Design Gloss Black Rear Side Splitters V.2 for BMW 3 Series G20/G21 M Sport Rear Bumper 2018-2022 Saloon & Touring Rear Spats

Maxton V2 High-Gloss Rear Corner Extensions for BMW 3‑Series G20 G21 M Sport 2018 to 2022

Give the back end of your 3‑Series a sharper, lower and more purposeful look with these Maxton V2 rear corner extensions in piano black. Tailor‑made for the BMW G20 Saloon and G21 Touring fitted with the M Sport rear apron, this pair of add‑on blades finishes the lower bumper neatly and ties together your aero package with a clean, OEM‑style fit.

Manufactured from robust ABS and finished in a deep high‑gloss black, these rear bumper extensions are a durable exterior styling upgrade that complements front lips, side skirt extensions and rear diffusers. The result is a cohesive, sportier stance that looks right at home on both the Sedan and the Estate.

We have installed these at MJ Modifications and customers love the fit, finish and instant visual impact. If you want a cost‑effective, high‑impact rear-end enhancement for your G20 or G21, this Maxton V2 set is a proven favourite.

Vehicle compatibility

• BMW 3‑Series G20 Saloon with M Sport rear bumper, 2018, 2019, 2020, 2021, 2022
• BMW 3‑Series G21 Touring with M Sport rear bumper, 2018, 2019, 2020, 2021, 2022

Note: Designed specifically for M Sport rear bumpers. Not suitable for non‑M Sport models.

What’s included

• Maxton V2 rear corner extensions, left and right
• Fitting hardware and installation guide

Why choose this upgrade

• High‑gloss piano black finish for a premium appearance
• ABS construction for strength and everyday usability
• Transforms the lower bumper with a sportier, lower visual line
• Pairs perfectly with lip kits, skirt extensions and diffusers
• Great value styling enhancement with OEM‑like alignment

Fitting and support

Professional installation recommended for best alignment and secure fixing. We offer fitting at MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Installation manual: Rear Side Extensions Installation Guide

Always test‑fit before drilling or final fixing. Supplied with a protective film to prevent transport marks. Remove the film after installation to reveal the flawless gloss black finish.

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