This M-inspired rear diffuser adds a sharpened, technical finish to the rear of the 2012-2018 BMW 3 Series (F30/F31) sedans and wagons. Manufactured from durable polypropylene, this piece replaces the factory insert to define the space around the exhaust tips and give the M Sport bumper a more aggressive, grounded profile.

• Refined Rear ProfileThe deep fin design adds significant visual depth to the lower bumper, creating a more purposeful and completed look for the F30 and F31 chassis.
• Resilient Polypropylene BuildEngineered from premium thermoplastic to ensure a factory-like matte black finish and long-lasting durability against road debris.