Transform the rear profile of your BMW 4 Series coupe (F32) or convertible (F33) from its standard factory look to the aggressive, wide-stanced aesthetic of the M Sport package. This polypropylene conversion kit replaces the softer OEM lines with sharp, deep contours and includes a modular diffuser system to give your build a complete visual overhaul. Every component is designed to flow naturally with the existing bodywork, ensuring the transition from the quarter panels to the rear fascia looks like a factory-ordered upgrade.

• M Sport Design LanguageReplaces the rounded factory bumper with the chiseled, athletic geometry found on flagship M Sport models for a more planted appearance.
• Modular Diffuser OptionsChoose between 428i, 435i, or quad-exhaust diffuser setups to perfectly frame your rear tips and sharpen the lower bumper profile.
• Durable Polypropylene ConstructionManufactured from high-grade, impact-resistant plastic that provides a smooth surface for paint prep and long-lasting structural integrity.
• PDC CompatibilityFeatures internal markings for parking distance control sensors, allowing for clean drilling and a factory-finish sensor integration.