Performance M
Maxton Design V1 Gloss Black Rear Diffuser/Lip & Lower Valance for BMW M135i xDrive F40 & 1 Series F40 M Sport (2019+) - Piano Black Rear Bumper Insert, Splitter, Skirt, Apron, Rear Lower Trim - OEM+ ABS Styling
Maxton Design V1 Gloss Black Rear Diffuser/Lip & Lower Valance for BMW M135i xDrive F40 & 1 Series F40 M Sport (2019+) - Piano Black Rear Bumper Insert, Splitter, Skirt, Apron, Rear Lower Trim - OEM+ ABS Styling
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 Lower Diffuser V1 by Maxton Design for BMW F40 M135i and 1 Series M Sport 2019-on
Give the back end of your F40 a serious styling lift with this high gloss rear lower valance from Maxton Design. The V1 profile adds a sharper, motorsport look and a stronger rear stance while keeping that premium OEM+ vibe. Manufactured from automotive grade ABS with a deep piano black finish, this rear apron insert is a durable, everyday-friendly upgrade that looks right at home on the M135i and 1 Series M Sport.
We have installed these in-house and the fit, finish and transformation are spot on. Customers consistently comment on the clean alignment, the quality of the gloss and the way it completes the rear bumper on the F40 platform.
Vehicle compatibility
- BMW M135i F40 2019 onwards
- BMW 1 Series F40 M Sport 2019 onwards
What is included
- Maxton Design V1 rear lower valance in high gloss black
Why you will love it
- Premium piano black surface for a factory plus appearance
- ABS construction used widely in the automotive industry for exterior styling
- Lightweight with a touch of flexibility for real world use
- Defines the rear bumper line for a lower, more aggressive profile
- TUV Materialgutachten certified material for added confidence
Installation
- Direct replacement for the original lower panel
- Secured using self tapping screws
- Fitting guide: Download here
- Professional fitting recommended. MJ Modifications offers fitting in Warwickshire. Request a quote: info@mjmodifications.co.uk
Good to know
- No painting required
- Supplied with a protective film. Test fit first and remove the film only once you are happy with alignment. Removing the film voids returns
- Please double check your bumper type and compare with the images before installation
- We cannot be responsible for incorrect fitting or misuse
- Holographic authenticity label confirms a genuine Maxton Design product. Removing it will void returns
Search friendly terms customers use
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