Does the V2 diffuser need any other parts to fit?

Yes. ADRO specifies that it must be used with the ADRO 992.2 GT3 rear apron panel, part number A23A11-1311, sold separately. If the car still wears the factory rear apron, order both at the same time and budget for the pair.

What is different between the Prepreg Carbon Rear Diffuser V2 and V1?

V2 is one complete carbon piece with shorter fins formed into the diffuser body. V1 has taller fins that bolt on individually and can be replaced one at a time. Both run the full length of the underbody, so the difference is fin height and repairability.

Which 992.2 GT3 models does it fit?

Every 992.2 GT3, Touring Package cars included. ADRO shaped V2 with those cars in mind, since a Touring gives up the fixed wing for a retractable spoiler and the shorter fins suit that look. Check the generation first, because the 992.1 GT3 takes a different diffuser.

What is the diffuser made from?

The Prepreg Carbon Rear Diffuser V2 is prepreg carbon fiber throughout. The reinforcement arrives already impregnated with resin in a controlled ratio and is cured under heat and pressure, which gives a more consistent laminate than a wet layup. Fins included, it is formed as one panel.

What is the lead time on the diffuser?

It is made to order rather than held in stock, so it is built after the order is placed, and lead time moves with the production queue at ADRO. Contact Bulletproof Automotive for the current estimate before ordering, and plan paint or bodywork around that date.

Description

Additional Info

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BP PRICING DIFFERENCE

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Description

ADRO Prepreg Carbon Rear Diffuser V2 for 992.2 Porsche 911 GT3

ADRO’s Prepreg Carbon Rear Diffuser V2 for the 992.2 Porsche 911 GT3 was drawn for owners who want the underbody work without the visual announcement. It is one piece of prepreg carbon running the full length of the floor, with the vertical fins formed into the diffuser body rather than mounted to it, and standing shorter than the fins on the original. The aerodynamic job is unchanged: air leaving the low-pressure region under the car expands back to atmospheric pressure, and that expansion zone is where flow separation starts, so the fins spin the transition into ordered vortices instead of letting it go turbulent. What changed is the profile. A Touring Package car trades the fixed wing for a retractable spoiler because its owner would rather the hardware were discovered than seen from across a parking lot, and V2 is cut to sit inside that intent.

Construction

The Prepreg Carbon Rear Diffuser V2 is formed as one panel, so there is no fastener line along the top of each fin and no seam where a bolt-on fin meets the floor, which is why it reads as a single surface from a few feet away. It also gives up the repair path V1 offers: a fin caught on a driveway lip cannot be unbolted and swapped, so the panel is repaired or replaced whole. Owners with steep approaches or a regular track schedule should weigh that before choosing, because the airflow result is the same either way.

Features

One-piece prepreg carbon construction, with the vertical fins formed into the diffuser body
Shorter fin height than V1, shaped to stay quiet from side and three-quarter angles
Full-length underbody coverage, unchanged from V1
Orders the underbody-to-atmosphere transition into vortices to limit flow separation
Fins are integral to the panel, so a single damaged fin cannot be replaced on its own

Applications

Porsche 911 GT3: 992.2 | 2025-present

Notes

The Prepreg Carbon Rear Diffuser V2 must be used with the ADRO 992.2 GT3 Rear Apron Panel, sold separately
The fins cannot be replaced individually. The ADRO Prepreg Carbon Rear Diffuser V1 (A23A11-1301) keeps the bolt-on fin design for owners who want it.
Fits every 992.2 GT3 trim, Touring Package included
Made to order, professional installation recommended
The ADRO Complete Aero Kit for 992 Porsche 911 GT3 is built around V1, not V2. To build the full aero program around V2, order the components individually: Front Lip, Front Fenders, Side Skirts, AT-P Swan-Neck Rear Wing and AT-P2 Swan-Neck Rear Wing.

Frequently Asked Questions

Does the V2 diffuser need any other parts to fit? Yes. ADRO specifies that it must be used with the ADRO 992.2 GT3 rear apron panel, part number A23A11-1311, sold separately. If the car still wears the factory rear apron, order both at the same time and budget for the pair.
What is different between the Prepreg Carbon Rear Diffuser V2 and V1? V2 is one complete carbon piece with shorter fins formed into the diffuser body. V1 has taller fins that bolt on individually and can be replaced one at a time. Both run the full length of the underbody, so the difference is fin height and repairability.
Which 992.2 GT3 models does it fit? Every 992.2 GT3, Touring Package cars included. ADRO shaped V2 with those cars in mind, since a Touring gives up the fixed wing for a retractable spoiler and the shorter fins suit that look. Check the generation first, because the 992.1 GT3 takes a different diffuser.
What is the diffuser made from? The Prepreg Carbon Rear Diffuser V2 is prepreg carbon fiber throughout. The reinforcement arrives already impregnated with resin in a controlled ratio and is cured under heat and pressure, which gives a more consistent laminate than a wet layup. Fins included, it is formed as one panel.
What is the lead time on the diffuser? It is made to order rather than held in stock, so it is built after the order is placed, and lead time moves with the production queue at ADRO. Contact Bulletproof Automotive for the current estimate before ordering, and plan paint or bodywork around that date.

About ADRO

ADRO is an aftermarket manufacturer specializing in carbon fiber aerodynamic components for modern performance and sports cars, with aero engineered by former F1 and OEM designers. ADRO develops its parts using CFD simulation with a focus on adding usable downforce at minimal drag cost while preserving each vehicle’s factory balance and lines, producing them in high-grade prepreg carbon fiber. Bulletproof Automotive carries ADRO’s aero program for enthusiasts looking to make their cars faster where it counts.

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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ADRO Prepreg Carbon Rear Diffuser V2 for 992.2 Porsche 911 GT3 [A23A30-1301]

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ADRO Prepreg Carbon Rear Diffuser V2 for 992.2 Porsche 911 GT3

Construction

Features

Applications

Notes

Frequently Asked Questions

About ADRO

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