Performance M
Maxton Design Street Pro Rear Diffuser / Splitter Insert, Satin Black - BMW 8 Series Gran Coupe G16 M Sport (M Pack) 2019-2024 - Rear Valance/Apron Lower Bumper Lip Spoiler
Maxton Design Street Pro Rear Diffuser / Splitter Insert, Satin Black - BMW 8 Series Gran Coupe G16 M Sport (M Pack) 2019-2024 - Rear Valance/Apron Lower Bumper Lip Spoiler
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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Street Pro rear splitter insert in satin black for BMW 8 Series Gran Coupé G16 with M Sport package, 2019 on
Transform the back end of your G16 Gran Coupé with this Maxton Design Street Pro rear lower diffuser panel in black. It sharpens the stance, tidies the rear apron and adds purposeful, motorsport-inspired aero styling that complements the M Sport rear bumper. Built from robust 10 mm ABS with a factory-style finish, it delivers an OEM-plus look with real-world durability.
Why enthusiasts choose this rear lower diffuser
- Tailored specifically for the BMW 8 Series Gran Coupé G16 with the M Sport package, model year 2019 on
- Heavy-duty 10 mm ABS construction for excellent rigidity and strength
- Resistant to scuffs and impacts for confident daily use
- UV-stabilised surface that helps protect against fading
- Weatherproof material for year-round reliability in the UK climate
- Supplied film wrapped to help guard the surface during transport
- Ready to fit out of the box, painting not required
- Genuine Maxton Design piece with authenticity label
- TÜV Materialgutachten certified material
Finish options
- 10 mm satin black
- 10 mm satin black with red accent core
If you plan to paint the item, use a suitable primer first.
What you receive
- Maxton Design Street Pro rear diffuser panel
- Fitting hardware
Fitment
For BMW 8 Series Gran Coupé G16 with M Sport rear bumper only, 2019 on. Also referred to as rear valance insert, rear apron diffuser, rear lower bumper splitter for the G16 8 Series four-door coupé.
Why buy from MJ Modifications
We have installed this Street Pro diffuser on customer cars and the feedback has been consistently positive. Fitment is precise, the finish is top-notch and the look is aggressive yet refined. It integrates seamlessly with the M Sport rear apron for that premium OEM-plus appearance.
Installation
Supplied with a mounting kit for a straightforward bolt-on install. Professional fitting is recommended to achieve the best alignment and finish. MJ Modifications offers expert installation at our Warwickshire workshop. Request a fitting quote: info@mjmodifications.co.uk.
Search-friendly terms
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