BMW 4 Series F32 F33 F36 M Performance Rear Diffuser (BMW Diffuser) – Gloss Black (2012–2019)
BMW 4 Series F32 F33 F36 M Performance Rear Diffuser (BMW Diffuser) – Gloss Black (2012–2019)
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BMW 4 Series F32 F33 F36 M Performance Rear Diffuser (BMW Diffuser) – Gloss Black (2012–2019)
Upgrade the rear end of your BMW 4 Series with this M Performance style BMW diffuser in gloss black, designed specifically for F32 Coupe, F33 Convertible, and F36 Gran Coupe models with the M Sport package. The multi-fin design with mesh side vents adds a dynamic, aggressive rear profile while improving airflow.
Why Choose This BMW Diffuser
This diffuser is engineered specifically for F32, F33, and F36 M Sport models — not a universal fit — so it sits precisely against the factory bumper line. The deep gloss black finish gives a high-shine look that complements any body colour, while the multi-fin design with mesh side vents enhances rear airflow and reduces drag for a sharper stance.
Details
Built from durable, weather-resistant ABS plastic for everyday use, this diffuser installs at factory mounting points with minimal modification. Fits M Sport bumpers only, so check your trim level before ordering.
Ready for a sharper, more aggressive rear stance? This diffuser bolts straight on. Browse more BMW 4 Series parts to complete your build.

Absolutely transformed the look of my car. The ABS plastic feels solid and thick, not the flimsy stuff you get elsewhere. Really happy, car looks mean now.
Absolutely transformed the look of my car. Lined up perfectly with the factory mounting points, no drilling needed. Cannot fault it.
Really pleased with this. Came well packaged with no scuffs or damage in transit. Chuffed with the whole experience.
Exactly what I wanted for the build. Took about an hour to fit with the tape and a couple of clips. Worth every penny.
Massive upgrade over the standard bumper. Lined up perfectly with the factory mounting points, no drilling needed. Cannot fault it.