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.
01
Key BenefitsFeatures
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.
About us: BayernMotorWerks.com is your One-Stop shopping for all parts and accessories compatible with vehicles produced by Audi Porsche VW & BMW.
We are proud to bring you the finest products from around the world to maintain and personalize your vehicle. Please drop us a note and share your shopping experience or suggest new products for us to offer. Your opinion matters.
All rights reserved 2026 BayernMotorWerks.com, a domain owned by Bayern Munich Automotive LLC PO Box 48073 Burien, WA 98148, Seattle Warehouse 309 S Cloverdale St Bldg C-12 Seattle, WA 98108
The Audi name and Audi Rings logos are the property of VW Ag. Bayern Munich Automotive LLC is not affiliated nor directly represent Audi of America, VW Group of America, or Porsche North America. Bayern Munich Automotive LLC is a private independently owned company that markets OEM and aftermarket products.
