3DDesign Pre-Facelift Carbon Rear Diffuser for F98 X4M

Upgrade the rear of your F98 BMW X4 M (pre facelift) with the 3DDesign Carbon Rear Diffuser, a precision-engineered component that blends aggressive styling with aerodynamic functionality. Crafted from lightweight 2×2 twill prepreg carbon fiber, it integrates seamlessly with the factory M rear bumper, enhancing the X4 M’s muscular stance and sporty presence. The sculpted design directs airflow while emphasizing the vehicle’s performance-oriented lines, and the high-quality carbon weave finish reflects 3DDesign’s renowned Japanese craftsmanship. This diffuser delivers a track-inspired, refined aesthetic that elevates both the style and character of your X4 M.

Gtechniq EXOv5 Coating

• This optional coating forms a durable, long-lasting bond that will not wash off or break down, providing reliable, extended protection for paintwork and other treated surfaces. It creates a strong protective barrier that helps shield against damaging environmental contaminants such as dirt, road grime, and pollutants, while also offering enhanced scratch resistance to maintain a clean, high-gloss finish over time. For those seeking maximum durability and performance, the coating can be applied in multiple layers to increase thickness, strengthen protection, and further extend the life of the surface.

Features

• High‑grade prepreg 2×2 twill carbon fiber construction — lightweight yet strong.
• Sculpted aerodynamic fins and contours that enhance airflow under the rear of the vehicle and contribute to a more aggressive stance.
• Gloss carbon fiber finish with UV‑resistant clear coat to maintain longevity and resist fading.
• Installs using factory mounting points with minimal or no modifications required.
• Finish and design crafted to reflect premium Japanese engineering and visual quality.

Applications

• BMW X4 M: F98 | 2019-2025

Notes

• Hands-Free tailgate function may be impacted
• Only compatible with pre facelift F98 X4 M

About 3DDesign

3DDesign is a Japan-based BMW specialist recognized for OEM-level fit, refined aesthetics, and real-world performance. Drawing on motorsport development, the brand engineers aerodynamic components, wheels, exhaust systems, suspension, and interior accessories using advanced CAD / CAM, CFD, and road / track testing. Its catalog emphasizes lightweight, high-quality materials — such as carbon fiber, forged aluminum, and titanium — paired with precise tolerances for seamless integration with factory systems. The result is a cohesive, OEM-plus driving experience that elevates both form and function across modern BMW platforms.