BMW Rear Diffuser – 3 Series F30 F31 M Performance (Dual Left Exhaust) – Gloss Black (2012–2019)
BMW Rear Diffuser – 3 Series F30 F31 M Performance (Dual Left Exhaust) – Gloss Black (2012–2019)
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BMW Rear Diffuser – 3 Series F30 F31 M Performance (Dual Left Exhaust) – Gloss Black (2012–2019)
This BMW rear diffuser is built for the 3 Series F30/F31 M Performance lineup in a sharp gloss black finish, giving your rear end a more aggressive stance while improving real aerodynamics. It features dual exhaust cutouts on the left side, making it the correct fit for twin left-exit exhaust configurations.
Why Choose This BMW Rear Diffuser
Correct exhaust fitment matters here — the dual left exhaust cutouts are designed specifically for twin left-exit setups, so double-check your configuration before ordering. The multi-fin design improves rear airflow and reduces drag for better stability at speed, while the deep gloss black finish pairs naturally with M Performance styling. Built from durable ABS construction, it's lightweight yet strong enough for long-lasting daily use.
Details
Fitment: BMW 3 Series F30 (Saloon) / F31 (Touring), M Sport bumper, 2012–2019
Exhaust: Dual left-exit cutouts
Finish: Gloss black
Material: ABS plastic
Installation is a direct bolt-on using factory mounting points, with no major modifications needed.
Browse more BMW styling parts to complete your build.
Ready to give your F30/F31 a sharper rear stance? This diffuser bolts straight on.

Chuffed with this purchase. Lined up perfectly with the factory mounting points, no drilling needed. 10/10, exactly as pictured.
Cracking bit of kit. Feels far more premium than the price suggests. Really happy, car looks mean now.
Chuffed with this purchase. Lined up perfectly with the factory mounting points, no drilling needed. Really happy, car looks mean now.
The gloss black finish is gorgeous. The finish is deep and glossy, a real head turner. Highly recommend to any BMW owner.
Absolutely transformed the look of my car. Lined up perfectly with the factory mounting points, no drilling needed. The finish is deep and glossy, a real head turner. Highly recommend to any BMW owner.