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Genuine BMW 3 Series G20 G21 (Saloon/Touring) M Performance High Gloss Black Rear Bumper Trim OEM Rear Diffuser Insert/Valance Fits 318d 320d 320i 330d 330i 330e xDrive 51192455856

Genuine BMW 3 Series G20 G21 (Saloon/Touring) M Performance High Gloss Black Rear Bumper Trim OEM Rear Diffuser Insert/Valance Fits 318d 320d 320i 330d 330i 330e xDrive 51192455856

Regular price £418.37
Regular price £431.00 Sale price £418.37
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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.

OEM Plus Rear Lower Valance in Piano Black for BMW 3 Series G20 G21

Give the back end of your 3 Series a sharper, more purposeful look with this original BMW M Performance rear lower apron insert finished in deep piano black. Built from premium PUR for outstanding longevity, it is UV stable, heat resistant and water resistant. The result is a factory-quality upgrade that clicks straight into place, delivering that sought-after OEM+ aesthetic without compromise.

Perfect for owners wanting an OE-spec rear lower bumper panel that ties in with M Sport styling, this genuine BMW component provides a high-shine finish and precise fit. It suits daily drivers and show builds alike, elevating the stance of the car while retaining a clean, original appearance.

Key reasons to choose this original BMW part

  • Authentic BMW M Performance accessory for the G20 saloon and G21 touring
  • High-gloss black colour for a premium, stealthy rear-end appearance
  • OE-grade PUR construction that is UV, temperature and water resistant
  • Exact fitment to the existing bumper for seamless integration
  • Ideal match with other M Sport exterior details and trims
  • Designed for popular engines and drivetrains including 318d, 320d, 320i, 330d, 330i, 330e and xDrive

Part number

51192455856

Vehicle compatibility

Engineered for BMW 3 Series G20 saloon and G21 touring models.

  • G20
    • 318d, 320d, 320d xDrive, 320i, 320i xDrive, 330d, 330d xDrive, 330e, 330i, 330i xDrive
  • G21
    • 318d, 320d, 320d xDrive, 320i, 330d, 330d xDrive, 330i, 330i xDrive

Important fitment note

This rear lower trim is designed to be used with one of the following diffusers, available separately:

  • M340i gloss black diffuser
  • M340i carbon fibre diffuser
  • G20 G21 carbon rear diffuser

Our experience

We have installed this original BMW lower bumper insert on customer cars and our own projects. The alignment and finish are spot on, and feedback has been consistently excellent. If you want a genuine BMW piano black rear skirt with perfect fit and an OEM appearance, this is the one to choose.

Compatibility check

We confirm fitment before dispatch. Add your UK registration or the last seven characters of your VIN at checkout to ensure you receive the correct part for your G20 or G21.

Fitting service

Professional installation recommended. MJ Modifications in Warwickshire can fit this item. For a fitting quote, email info@mjmodifications.co.uk.

Manufactured by

BMW – Genuine M Performance Parts

Warranty

Two-year manufacturer warranty when a valid VIN is supplied at checkout.

Search-friendly terms

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