Performance M
Maxton Design Rear Spats / Side Splitters V1 - Gloss/Piano Black - BMW 4 Series G22 Coupe M Sport (M Pack) 2020+ Rear Corner Extensions, Bumper Extensions, Diffuser Side Trims
Maxton Design Rear Spats / Side Splitters V1 - Gloss/Piano Black - BMW 4 Series G22 Coupe M Sport (M Pack) 2020+ Rear Corner Extensions, Bumper Extensions, Diffuser Side Trims
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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Gloss Black Rear Corner Extensions V1 for BMW G22 4 Series Coupe with M Sport Package 2020+
Give the back end of your G22 a sharper, wider look with these Maxton Design rear corner extensions in high gloss black. Purpose-built for the BMW 4 Series Coupe with the M Sport package, they sit neatly under the rear bumper corners for a clean, OEM-plus appearance that complements the factory diffuser and trims. The deep piano-black finish pairs effortlessly with any paint colour and specification.
Why enthusiasts choose this upgrade
- Instant visual impact that makes the rear look lower and more aggressive
- Vehicle-specific moulding for a tidy, factory-style fit around the bumper edges
- Quality ABS construction for everyday durability and flexibility
- High gloss surface for a premium look that matches other black styling parts
- Supplied with fixings and instructions for a straightforward install
Compatibility
Designed for BMW 4 Series G22 Coupe with M Sport package (M Pack), 2020 onwards. Fits M Sport rear bumper only.
What’s in the box
- Left and right rear corner extensions
- Fitting hardware and an installation guide
Material and finish
Manufactured from ABS plastic for strength with a touch of flexibility that helps resist minor knocks in daily use. Finished in gloss black. Supplied with a protective film; peel this off after installation to reveal the flawless shine.
Installation and support
Professional fitting is recommended for perfect alignment and secure mounting. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.
Tried and trusted
We run Maxton aero parts on our own builds and our customers consistently praise the fit, finish and overall transformation these rear corner pieces deliver.
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