BMW F20 LCI Aggressive Diffuser Fins
Turn up the presence of your BMW 1 Series with our aggressive rear diffuser fin extensions, purpose-made for the F20 LCI and F21 LCI platform. If your aftermarket 1 Series rear diffuser isn’t bold enough, these rear fins deliver the track-inspired, performance look enthusiasts want. They completely transform the tame, standard BMW diffuser and dial in a more purposeful, motorsport-style rear end.
This upgrade has been seriously popular with our 1 Series community. We run these fins on our own builds and customer cars, and the feedback on the look and fit has been fantastic.
Why choose these BMW 1 Series diffuser fins
- Aggressive rear diffuser fins for BMW 1 Series F20 LCI and F21 LCI
- Instant visual upgrade that complements an aftermarket rear diffuser
- Enhances stance and presence for a race-inspired rear profile
- Proven on our own Nforcd cars and loved by customers
Compatibility and requirements
- Chassis: BMW 1 Series F20 LCI, F21 LCI including BMW M140i LCI
- These are fins only. Rear diffuser is sold separately.
- Requires an aftermarket rear diffuser. Not compatible with the standard OEM diffuser.
- Works with the Nforcd aftermarket rear diffuser: Nforcd M140i Rear Diffuser
Fitting and support
Prefer professional installation? Book fitting with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Search-friendly details
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Note: fins only. Diffuser not included.