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BMW RZ-S Pre-Preg Carbon Fiber Rear Diffuser for G90/G99 M5
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SPECIFICATIONS
The RZ-S (Street Series) Rear Diffuser is designed to elevate the rear of the G90 M5 and G99 M5 Touring while staying true to BMW's factory styling philosophy. Developed as part of RZ's Street Series, it features a clean yet purposeful design that enhances the rear bumper with sharper lines and a more sculpted profile without appearing overly aggressive. The result is a refined OEM+ appearance that perfectly complements the character of BMW's latest M5.
Manufactured from pre-preg dry carbon fiber, this diffuser is exceptionally lightweight while maintaining outstanding strength and rigidity. As the highest-end form of carbon fiber construction, pre-preg carbon offers superior weave clarity and a premium finish, with the weave matching BMW's OEM 2x2 carbon pattern used across factory exterior carbon components. Designed specifically for the G90 M5 and G99 M5 Touring, it delivers the exceptional fit, craftsmanship and attention to detail that RZ is renowned for, making it the perfect finishing touch to a complete RZ-S Street Series package.
Key Features:
- Genuine Japanese TORAYCA™ carbon fiber construction - ultra-lightweight with stunning 2×2 gloss twill weave for strength and finish
- Aerodynamically engineered with advanced CFD and wind-tunnel insights for measurable downforce and high-speed stability on track and road
- Designed as an integrated performance aero system to optimize airflow, reduce drag, and improve grip through corners.
- Functional, race-proven components offering real performance gains, not just cosmetics - the best choice for serious enthusiasts and track drivers
Material Type: High-Quality Pre-Pregged Dry Carbon Fiber
Fitment: M5 G90/G99 (2024+)
BMW RZ-S Pre-Preg Carbon Fiber Rear Diffuser for G90/G99 M5
Sale price$3,531.00 USD
FAQs
Shipping times may vary depending on your order size and location, however we always aim to provide the fastest delivery times possible. If your item is in stock, it will typically dispatch within 1-3 business days.
If your product is marked as made to order in the Key Features section, please allow approximately 2-3 weeks for production prior to dispatch. We are committed to delivering all orders as quickly and efficiently as possible while minimising delays.
To check if a part fits your vehicle, please utilise the 'Fitment' section on our product description. If your vehicle is listed, the part will fit your car. If you're unsure, our fitment bar is also available to help you find compatible products for your specific make and model.
If this product is promised to fit your car, and does not, we have a 100% full money-back refund policy.
TORAYCA™ is a carbon fiber material made by Toray Industries in Japan, its the same company that supplies carbon to brands like Lamborghini, McLaren, Aston Martin, and even Ferrari. It’s the real deal used in supercars, race cars, and aerospace builds where strength, weight, and heat resistance actually matter.
We use genuine Japanese TORAYCA™ Carbon Fiber in all our wet and dry carbon parts. Why? Because it’s lighter, stronger, and more reliable than the cheap composite blends flooding the market from Aliexpress. TORAYCA™ holds up under pressure, keeps its shape over time, and doesn’t fade or fray like lower-grade alternatives.
This is the carbon you use when performance isn’t optional. If you're building a car that turns heads and doesn’t cut corners, TORAYCA™ is the standard.
And it’s the only carbon we trust.
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We offer payment plans through partnerships with Afterpay. Paying in 4 equal instalments. Please note that application approvals are handled by our partners and we do not receive any sensitive financial information.
Instruction manuals are included with select products. We strongly recommend professional installation to ensure optimal performance and safety. Euro Empire Auto is not liable for damages incurred during self-installation.
Dry carbon fiber is the premier choice, being 70% lighter than wet carbon and constructed entirely from carbon material, providing a distinct, symmetrical weave. Wet carbon fiber, while slightly heavier, is also high quality and involves applying carbon material onto a mold. Both options offer excellent performance and aesthetic appeal.
Our customer support team is available to assist you via email, phone, or Live Chat. Contact details are provided on our website. We are committed to providing excellent service and support for all your automotive needs.
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