Performance M
Maxton Design Street Pro Rear Corner Extensions / Side Splitters (Rear Spats, Rear Bumper Lips, Diffuser Side Extensions, Rear Valance Extensions) - 10mm Matte Black - Pair - BMW M4 G82 Coupe 2021+ M4 Competition | Fits Carbon Package/Carbon Pack Only
Maxton Design Street Pro Rear Corner Extensions / Side Splitters (Rear Spats, Rear Bumper Lips, Diffuser Side Extensions, Rear Valance Extensions) - 10mm Matte Black - Pair - BMW M4 G82 Coupe 2021+ M4 Competition | Fits Carbon Package/Carbon Pack Only
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Street Pro Rear Corner Extensions in 10 mm Matte Black for BMW G82 M4 2021 onwards
Transform the rear end of your G82 M4 with these Street Pro rear corner extensions from Maxton Design. Precision cut from 10 mm ABS for serious rigidity, these bumper skirt add-ons sharpen the rear arches and deliver that track-inspired look enthusiasts want, without compromising daily usability. If you are searching for rear corner lips, bumper spats, rear valance extensions, diffuser side extensions or rear arch fins for the BMW M4 G82, this is the upgrade that looks right and lasts.
Vehicle suitability
- BMW M4 G82 coupe 2021 onwards
- Fits vehicles with the factory Carbon Package only
Why this upgrade works
- Solid 10 mm ABS construction for a premium, weighty feel and improved stability at speed
- Matte black textured finish that matches modern OEM trim and hides marks
- UV and temperature resistant material for long term colour stability
- High impact and scratch resistant surface for daily driving and spirited use
- TUV MATERIALGUTACHTEN certified material quality
- G82 specific shaping for a neat, consistent gap to the rear bumper corners
- Authentic Maxton Design piece with branded detailing
- No painting required. Fit and drive
Finish options
- 10 mm matte black
- 10 mm matte black with red core accent
In the box
- Maxton Street Pro rear corner extensions - pair
- Mounting hardware kit
Installation
Supplied with a fitting kit for a secure install. We recommend professional fitting for the cleanest alignment and an OEM-plus finish. For expert installation, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Packaging and care
- Delivered with protective film and securely boxed
- If painting, apply a suitable primer before colour
Real world results
We have fitted these in-house and the transformation is immediate. The rear quarters look lower and wider, and the profile ties in perfectly with OEM carbon aero on Carbon Pack cars. Customers consistently praise the robust 10 mm thickness, the precise fit, and the way the Street Pro styling complements other Maxton upgrades on the G82 platform.
Common search terms
BMW G82 rear corner extensions, M4 Competition rear bumper lips, G82 rear bumper spats, BMW M4 diffuser side extensions, G82 rear valance add ons, M4 rear arch fins, Maxton Street Pro rear corners, M4 2021 rear corner splitters, G82 aero kit rear, BMW M4 Carbon Pack rear corner pieces, BMW M4 rear skirt extensions, G82 body styling rear, M4 rear bumper trim upgrades, BMW M4 rear corner lips matte black, Maxton Design rear corners for G82.
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