Does the NOVITEC SF90 rear diffuser provide a measurable aerodynamic benefit?

Yes. The diffuser accelerates airflow exiting from beneath the car, reducing rear lift at speed. The multi-fin structure manages the transition from underbody airflow to free air at the rear of the SF90, which has a direct effect on rear axle aerodynamic load and high-speed stability.

Does it replace the factory rear diffuser entirely?

Yes. The NOVITEC SF90 rear diffuser replaces the factory lower rear treatment as a complete unit. Professional installation is required due to the scope of the replacement.

What is the difference between the 2x2 twill weave and the OEM Ferrari 1x1 plain weave options?

The 2x2 twill weave produces the diagonal woven pattern commonly associated with aftermarket carbon fiber and has a more visually active appearance. The 1x1 plain weave uses a tighter, more uniform grid that matches the carbon finish on factory Ferrari carbon trim. If the car has OEM carbon elements, the 1x1 plain weave is the more consistent choice; the 2x2 twill suits builds leaning toward an aftermarket aesthetic.

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BP PRICING DIFFERENCE

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Description

NOVITEC Carbon Rear Diffuser for F173 Ferrari SF90 Stradale / Spider

The NOVITEC SF90 rear diffuser replaces the factory lower rear treatment on the Stradale and Spider with a full-width, multi-fin carbon assembly that accelerates airflow exiting from beneath the car, reducing rear lift and improving high-speed stability. The diffuser’s pronounced fin structure and heavily braced underside are functional elements of the design, managing the transition from underbody airflow to free air at the rear of the SF90 where that management has the most direct effect on rear axle aerodynamic load. Lightweight carbon construction throughout. Available in NOVITEC’s 2×2 twill weave or the OEM Ferrari 1×1 plain weave to align with the carbon direction of the rest of the build.

NOVITEC SF90 Aerodynamics

The SF90’s factory active aerodynamic system manages downforce and drag in real time across the full range of driving conditions. NOVITEC designs exterior components to work within that system, making specific aerodynamic and visual contributions at defined points on the car without introducing conflict with the factory active architecture or the platform balance Ferrari built in.

Developed for Specific Ferrari Platforms

Every NOVITEC component for the SF90 is built around a single requirement: improve the car’s performance and presence without disturbing the architecture Ferrari developed around it. Fitment precision, aerodynamic integration, thermal management, and grand touring refinement are foundational to the development process, not considerations that come in at the end.

Built for Ferrari Owners Who Demand Precision

The owners who equip their SF90 with NOVITEC components know the car closely enough that any compromise in fit, finish, or function would be apparent from the first drive. Every product is built to operate within the SF90’s existing character, and every system is tested and validated under real driving conditions before it reaches a customer.

NOVITEC & Ferrari

German engineering precision directed at the most technically demanding Ferrari platform produced to date. NOVITEC’s SF90 program is grounded in a detailed understanding of how the hybrid system works and where genuine improvement is available. Every component is held to the same standard: does it raise the level of sound, precision, or presence without compromising what Ferrari already achieved.

Features

Full-width multi-fin carbon diffuser
Reduces rear lift and improves high-speed stability
Replaces factory lower rear treatment
Available in NOVITEC 2×2 twill weave or OEM Ferrari 1×1 plain weave
Lightweight carbon fiber construction

Applications

Ferrari SF90 Spider: F173 | 2020-2026
Ferrari SF90 Stradale: F173 | 2020-2026

More NOVITEC Aerodynamic Parts for Ferrari SF90 Stradale / Spider

Boot lid cover set
Ducktail spoiler
Engine bay cover set
Front bumper attachments
Front bumper attachment flaps
Front bumper center part
Front bumper center part w/ camera
Front lid cover
Front lid insert
Front lip spoiler
Race front fenders w/ carbon vents
Rear cockpit covers
Rear side wall air-guides
Rear spoiler
Roof spoiler (SF90 Stradale only)
Side panels
Side window triangle covers
Trunk cover set
Upper-part mirror covers

Notes

Professional installation required
Some images are symbolic, actual product may vary
Explore the entire NOVITEC Ferrari SF90 collection here:
- SF90 Stradale
- SF90 Spider

Frequently Asked Questions

Does the NOVITEC SF90 rear diffuser provide a measurable aerodynamic benefit? Yes. The diffuser accelerates airflow exiting from beneath the car, reducing rear lift at speed. The multi-fin structure manages the transition from underbody airflow to free air at the rear of the SF90, which has a direct effect on rear axle aerodynamic load and high-speed stability.
Does it replace the factory rear diffuser entirely? Yes. The NOVITEC SF90 rear diffuser replaces the factory lower rear treatment as a complete unit. Professional installation is required due to the scope of the replacement.
What is the difference between the 2×2 twill weave and the OEM Ferrari 1×1 plain weave options? The 2×2 twill weave produces the diagonal woven pattern commonly associated with aftermarket carbon fiber and has a more visually active appearance. The 1×1 plain weave uses a tighter, more uniform grid that matches the carbon finish on factory Ferrari carbon trim. If the car has OEM carbon elements, the 1×1 plain weave is the more consistent choice; the 2×2 twill suits builds leaning toward an aftermarket aesthetic.

About NOVITEC

NOVITEC, established in Germany, is renowned for its specialization in the refinement of sports cars and supercars from marquee brands like Ferrari, Maserati, McLaren, and Lamborghini. Founded on an unyielding passion for precision and innovation, the company focuses on enhancing the performance and aesthetics of these already exceptional vehicles to achieve unparalleled standards of excellence. NOVITEC’s team of skilled engineers and designers work tirelessly to develop a wide range of performance kits that improve power, handling, and braking, all the while ensuring perfect synergy with the vehicle’s inherent design. The company’s signature offerings include high-performance exhaust systems, engine tuning, comfortable yet dynamic suspension solutions, tailor-made wheel/tire combinations, and aerodynamic components. The aesthetic enhancements NOVITEC provides are not just for looks but are intricately designed to improve aerodynamics, resulting in better performance. Beyond performance enhancements, NOVITEC also offers a variety of options for interior customization, allowing for a personalized touch in every vehicle they refine. NOVITEC’s commitment to quality, innovative design, and performance has made it a trusted name in the automotive world, making the company synonymous with exclusivity, agility, and commanding performance. For those seeking to elevate the driving experience of their luxury sports car, NOVITEC is a name that stands at the forefront of automotive refinement.

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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NOVITEC Carbon Rear Diffuser for F173 Ferrari SF90 Stradale / Spider [F6 090 34]

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NOVITEC Carbon Rear Diffuser for F173 Ferrari SF90 Stradale / Spider

NOVITEC SF90 Aerodynamics

Developed for Specific Ferrari Platforms

Built for Ferrari Owners Who Demand Precision

NOVITEC & Ferrari

Features

Applications

More NOVITEC Aerodynamic Parts for Ferrari SF90 Stradale / Spider

Notes

Frequently Asked Questions

About NOVITEC

Reviews