BMW F90 M5 COMPETITION Style CARBON FIBRE Rear Diffuser
Price range: 389.99€ through 529.99€
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The BMW F90 M5 Competition Style Carbon Fibre Rear Diffuser brings race-inspired design and real aerodynamic purpose to the rear of your M5. It’s a bold statement that enhances both form and function — sharper lines, improved airflow, and that unmistakable M presence every enthusiast recognizes instantly.
Available in wet carbon or prepreg carbon fibre construction, each diffuser is built to the highest standards of quality. The wet carbon version delivers a rich, high-gloss finish with a deep weave pattern that shines beautifully under light. The prepreg carbon fibre option takes it a step further — lighter, stiffer, and formed under extreme pressure and temperature for unmatched precision and strength.
The Competition Style design integrates aggressively sculpted fins and smooth transitions that channel airflow efficiently under the car. It helps reduce turbulence and drag, adding both stability and visual power to the rear profile. The design also complements the M5’s naturally wide stance, amplifying its athletic look without compromising that refined factory elegance.
Finished with a UV-resistant high-gloss clear coat, the surface stays vibrant and protected against yellowing or fading over time. Every weave, edge, and contour is crafted with care, resulting in a piece that looks as engineered as it feels.
For those who value craftsmanship as much as performance, the BMW F90 M5 Competition Style Carbon Fibre Rear Diffuser delivers on both fronts. Lightweight, strong, and beautifully sculpted, it’s the kind of upgrade that feels right at home on a true M car — understated at a glance, but unforgettable in detail.
APPLICATIONS: 2018-2023 BMW F90 M5
PACKAGE INCLUDE: x1 REAR BUMPER DIFFUSER
MATERIAL: WET OR DRY CARBON FIBER
COLOR: BLACK
FINISH: GLOSSY WITH UV CLEAR COAT
FITMENT: DIRECT REPLACEMENT AND SELF TAPPING SCREWS
HIGH-QUALITY AFTERMARKET PRODUCT
PROFESSIONAL INSTALLATION IS HIGHLY RECOMMENDED
ADDITIONAL INFORMATION:
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PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.
- Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content. Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
- Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
- Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
- Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.
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We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.
Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.
Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.
RETURNS
Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.
Custom, used, or built-to-order items are non-returnable.
Once we receive and inspect your return, refunds are typically processed within 10 business days.
If your item is damaged or incorrect, contact us within 48 hours with photos and order details.
WARRANTY
All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.
This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.
To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.
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