Alpha-N Carbon Rear Diffuser for G90 & G99 BMW M5 [AN-0904/AN-0906]

Leveraging their strong industry connections, Alpha-N has developed a comprehensive “form follows function” carbon aero program for the new M5, inspired by their acclaimed G8X and G87 components. With a focus on performance, style, and their reputation for producing top-tier carbon parts, Alpha-N presents the initial G90 / G99 M5 development. This program elevates BMW’s super saloon to new heights, enhancing its ultra-modern, aggressive styling while delivering functional aerodynamic improvements and weight reduction.

The Diffuser

V1: Completing the Alpha-N G90 / G99 M5 Carbon Aero Program are two rear diffuser options. The V1 carbon rear diffuser builds on the original design, subtly extending the bodylines to enhance rear-end styling while maintaining functional aerodynamic properties. Designed with both form and function in mind, the V1 diffuser ensures elegance and performance.
V2: For those seeking a more aggressive approach, the V2 carbon rear diffuser offers advanced functionality and bold styling. Featuring an integrated underbody floor section, the V2 diffuser significantly increases downforce and reduces drag compared to the V1, delivering superior aerodynamic performance.

Further Information

With a wealth of expertise in carbon product development, Alpha-N consistently innovates, bringing cutting-edge motorsport technology to everyday vehicles. Their meticulous design and production process align with OEM standards, ensuring precision and quality. While minor adjustments may be required due to typical manufacturing tolerances or plastic warping, Alpha-N’s commitment to excellence ensures maximum customer satisfaction.

Features

Manufactured using the most complex and highest quality processes
2×2 twill fabric for CFRP components
Improves aerodynamics
Available in V1 and V2 versions
Lightweight (4.00kg)

What’s Included

Rear diffuser (2-piece set) (V1 only) (1)
Rear diffuser (5-piece set) (V2 only) (1)

Applications

BMW M5: G90, G99 (2025+)

Notes

The component is intended for gluing and painting on the original trunk
Product is shipped unpainted
Paint / clear coat required for installation
You are purchasing an original Alpha-N component
Please contact us if you have any questions about installation, whether any modifications are necessary or whether additional materials are required

About Alpha-N

Alpha-N brings extensive expertise in composites, motorsport, and vehicle optimization. As a leading name in vehicle tuning and carbon technology, Alpha-N’s team has years of experience in sports car construction, tuning, motorsport, and prototype development. They provide customized solutions tailored to car enthusiasts around the world. With a commitment to meeting the highest standards, Alpha-N holds the prestigious TÜV certification, highlighting their dedication to quality and reliability.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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