F32 4-Series M4 Style Rear Diffuser - F32 F33 4-series

Upgrade your BMW F32/F33 4-Series with the MBS M4 Style Rear Diffuser, designed to perfectly complement the factory M Sport rear bumper and give your ride the aggressive flair of its F82 M4 big brother. Crafted to fit all 2014+ 4-Series coupe and convertible models—except the M4 itself—this diffuser is a must-have for those seeking a sharp, track-inspired look.

Key Features:

• Authentic M4 Design – Accurately styled to match the F82 M4 rear diffuser for a bold, aerodynamic finish.

• Precision Fitment – Engineered to fit all F32/F33 BMW 4-Series (418i, 420i, 428i, 430i, 435i, 440i, including xi and various trim lines).

• Premium Polypropylene Construction – Made from high-quality, flexible polypropylene for exceptional durability and resistance to cracking.

• Comprehensive Kit – Includes all necessary hardware for a seamless installation.

• Optional PDC Sensor Holes – Available with or without parking distance controller cutouts based on your vehicle’s configuration.

Important Notes:

• Exhaust Modifications Required: This diffuser requires custom exhaust adjustments to fit properly. Quad exhaust setups may not align due to different spacing compared to M4-specific parts.

• F36 Gran Coupe Compatibility: Not designed for the F36 Gran Coupe, although some customers have reported successful installs with modifications. Consult your body shop before purchasing if you own an F36.

• Professional Installation Recommended: For best results, we suggest working with a skilled body shop familiar with BMW conversions.

Vehicle Fitment:
✔ BMW F32 Coupe / F33 Convertible (2014+)
❌ Not compatible with F36 Gran Coupe (without modifications)
❌ Not for F82 M4 models