Description
Carbon Fiber STW V1 Rear Diffuser for BMW G20 M340i (Pre-LCI)
Transform the rear-end styling of your BMW G20 M340i with our premium Carbon Fiber STW V1 Rear Diffuser, engineered to deliver aggressive motorsport aesthetics while maintaining a refined OEM+ appearance. The STW V1 design features sharp contour lines, sculpted aerodynamic fins, and a dynamic lower profile that enhances the factory rear bumper with greater depth, width, and performance-focused character.
Constructed from high-quality carbon fiber, this rear diffuser offers the perfect balance of lightweight durability, structural strength, and premium visual appeal. Its advanced composite construction improves styling presence while maintaining long-term reliability for both daily-driven and enthusiast vehicles.
The STW V1 style design introduces a bold and modern rear profile with defined diffuser fins that emphasize width and road presence. This results in a cleaner, more aggressive rear-end transformation while preserving the sophisticated lines of the G20 chassis.
Finished in a premium 2x2 carbon fiber twill weave, this diffuser delivers a symmetrical motorsport-inspired aesthetic that pairs perfectly with carbon front lips, side skirts, mirror caps, and trunk spoilers. For customized builds, optional matte carbon, forged carbon, and 1x1 weave finishes are available upon request through our Custom Product Inquiry section.
Each unit is coated with a durable UV-resistant high-gloss clear coat that helps protect against fading, yellowing, oxidation, and environmental wear. This ensures long-lasting gloss retention and a deep showroom-quality finish.
Engineered specifically for the BMW G20 M340i Pre-LCI, this diffuser is precision-designed to integrate seamlessly with the factory rear bumper using original mounting points. The result is secure installation, factory-level fitment, and an OEM-inspired finish.
Whether completing a full carbon aero package or upgrading a single rear-end component, the Carbon Fiber STW V1 Rear Diffuser delivers the ideal blend of aggressive styling, premium craftsmanship, and performance presence.
Key Features:
- Fits BMW G20 M340i (Pre-LCI)
- STW V1 aggressive OEM+ rear diffuser design
- Lightweight premium carbon fiber construction
- Precision fitment for factory rear bumper
- Sculpted aerodynamic fin styling
- Standard 2x2 carbon fiber twill weave
- Optional matte, forged, and 1x1 weave available
- UV-resistant high-gloss protective clear coat
- Enhances rear aerodynamics and visual presence
- Seamless factory-style integration
- 30-day warranty against fitment or shipping defects
Vehicle Fitment:
- BMW G20 M340i
- Model Years: Pre-LCI
Installation Notes:
- Professional installation recommended
- Test fit prior to installation
- Minor adjustments may be required
- Production and shipping times may vary
Warranty:
Includes a 30-day standard warranty covering fitment issues or damages upon arrival. Warranty does not cover damage after installation.
