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Continue shoppingGloss Black Rear Bumper Diffuser for BMW 1 Series F20/F21 (M Sport) 2015–2019
Increments of 1
Minimum of 1
Maximum of
60Low stock
60In stock, ready to ship
Sale price
£200.00
--182%
Regular price
£200.00
Unit price
per
Tax included.
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Description
Give your 1 Series a sharper M-style rear end with this gloss black rear diffuser insert, designed to replace the lower section on M Sport rear bumpers for a more aggressive, OEM+ look.
Key features
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Gloss black finish (as shown)
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Rear diffuser / valance insert upgrade
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Sporty, more aggressive rear styling
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Designed to fit M Sport rear bumpers
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Direct replacement style fitment (bumper removal may be required for install)
Compatibility
Fits BMW 1 Series F20 (5-door) / F21 (3-door) with M Sport rear bumper, typically:
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114d / 118d / 120d (2015–2019)
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M135i / M140i (2015–2019)
Optional configurations
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This style is commonly used for M-style/dual-exit look (left + right outlets).
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Fitment can vary depending on your exhaust layout (single exit vs twin/quad) and bumper spec.
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Some cars may need minor adjustment depending on existing trims/diffuser shape.
What you’ll receive
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1x Rear bumper diffuser (lower valance insert) in gloss black
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Mounting hardware/clips if included by the supplier (varies by listing)
Fitment note
This is for F20/F21 M Sport rear bumpers only (not standard SE/ED bumpers). Please add your vehicle registration number in the checkout notes, and ideally note whether your exhaust is dual exit, so we can confirm the correct version before dispatch.