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Rear Diffuser

Adding a more aggressive rear diffuser to your BMW can offer some performance benefits, but is primarily an aesthetic upgrade. BMWs naturally look great from the rear, why not make yours look even better?
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ADRO INC. - Corporate Logo
T#:27572112
Part#: A14A10-1301
In Stock
$ 1,290.00 USD
$ 1,290.00 USD

The ADRO diffuser is made of 100% hand-crafted carbon fiber and will bolt up easily to your OEM BMW M3 or M4 rear bumper with no fitment gaps.

This diffuser features built-in aero canards, 100% wet carbon fiber construction, and exhaust cutouts designed to fit both OEM and most aftermarket exhaust tips.

This diffuser kit will completely transform the look of the back of your BMW M3 or M4 and is much easier to install than a lot of the other diffusers on the market.

Includes:

  • 1 Carbon fiber rear diffuser
  • 3M Tape
  • Hardware
  • Installation manual
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ADRO INC. - Corporate Logo
T#:30198003
Part#: A18A20-1301
Ships in 3 Business Days
$ 590.00 USD
Free Shipping on orders $49 and up
Enhance your GR Supra's aesthetics with the ADRO carbon fiber rear winglets. Designed specifically for the GR Supra, these winglets are meticulously crafted from high-quality carbon fiber to ensure durability and a precise fit. With their sleek and sporty design, the winglets seamlessly integrate with the vehicle's rear, adding a touch of aggression and sophistication. Compatible with: 2020-2024 Toyota GR Supra 2.0 2020-2024 Toyota GR Supra 3.0 2020-2024 Toyota GR Supra 3.0 Premium 2023+ Toyota GR Supra A91-MT Edition 2022+ Toyota GR Supra A91-CF Edition 2021+ Toyota GR Supra A91 Edition 2020+ Toyota GR Supra 3.0 Premium Launch Edition
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ADRO INC. - Corporate Logo
T#:30198004
Part#: A18A20-1302
Ships in 3 Business Days
$ 1,690.00 USD
$ 1,690.00 USD
Introducing the ADRO Carbon Fiber Rear Diffuser for the Toyota GR Supra – where precision engineering meets cutting-edge design. Crafted with the utmost attention to detail, our diffuser seamlessly integrates form and function, elevating both the performance and aesthetics of your GR Supra. At ADRO, we understand the importance of precision. That's why our design process begins with in-house scan data, ensuring a near OEM fit and finish that blends seamlessly with your Supra's lines. The result? A rear diffuser that not only looks stunning but also delivers tangible performance gains. Whether you're pushing the limits on the track or turning heads on the street, the ADRO Carbon Fiber Rear Diffuser is your ticket to elevated performance and style. Experience the difference for yourself and unleash the full potential of your GR Supra. *Single exit cover piece included in all rear diffuser orders.* Compatible with: 2020-2024 Toyota GR Supra 2.0 2020-2024 Toyota GR Supra 3.0 2020-2024 Toyota GR Supra 3.0 Premium 2023+ Toyota GR Supra A91-MT Edition 2022+ Toyota GR Supra A91-CF Edition 2021+ Toyota GR Supra A91 Edition 2020+ Toyota GR Supra 3.0 Premium Launch Edition
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ADRO INC. - Corporate Logo
T#:41526348
Part#: A14A40-1301
Ships in 3 Business Days
$ 2,950.00 USD
$ 2,950.00 USD
Make that quad exhaust pop even more with the ADRO carbon fiber rear diffuser for the G82 BMW M4. Featuring a more aggressive design, carefully engineered aero, and a beautiful carbon fiber finish, this is by far the highest quality and most aggressive rear diffuser currently available for the G82 platform. *Does NOT fit M Performance Center Exhaust*
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ADRO INC. - Corporate Logo
T#:46203527
Part#: A14A90-1302
Ships in 3 Business Days
$ 1,850.00 USD
$ 1,850.00 USD
Enhance the aggressive styling and aerodynamics of your BMW G87 M2 with the ADRO Carbon Fiber Rear Diffuser V2. Designed for enthusiasts who demand both form and function, this diffuser seamlessly integrates with the factory body lines while delivering a bold, race-inspired appearance.
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ADRO INC. - Corporate Logo
T#:54852018
Part#: A14A70-1302
Special Order: No Guaranteed ETA
New Item
$ 1,355.00 USD
$ 1,355.00 USD
The ADRO BMW G20 M340i LCI Rear Diffuser introduces a more sculpted and sophisticated presence to the rear of the vehicle. Crafted from premium carbon fiber and hand finished with exceptional attention to detail, its original 3-piece construction creates a layered, tailored look that enhances the rear profile with greater depth and definition. The result is a subtle yet striking statement that feels both refined and unmistakably purposeful.
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ADRO INC. - Corporate Logo
T#:49369903
Part#: A14A90-1301
Ships in 3 Business Days
$ 2,490.00 USD
$ 2,490.00 USD
Complete the rear of your G87 M2 with a diffuser built for performance and presence. The BMW G87 M2 Carbon Fiber Rear Diffuser is hand-crafted from premium pre-preg carbon fiber, delivering lightweight strength, long-lasting durability, and race-inspired aesthetics that perfectly complement the M2’s aggressive character. Engineered using detailed vehicle data and validated through Computational Fluid Dynamics (CFD) testing, this diffuser isn’t just for show. Its sculpted profile manages airflow efficiently under the car, reducing turbulence and enhancing high-speed stability while remaining practical for everyday driving. Functional aero meets motorsport precision. Fitment and finish are second to none. Each diffuser is meticulously crafted to provide OEM-level integration, attaching seamlessly to the factory rear bumper with no trimming, cutting, or guesswork. The tight carbon weave and premium gloss finish deliver a show-quality look, while the reinforced structure ensures long-term reliability. Why it belongs on your G87 M2: Pre-preg carbon fiber construction for maximum strength and minimal weight CFD-tested design to optimize airflow and enhance rear stability Hand-crafted precision with consistent carbon weave and flawless finish OEM-perfect fitment for seamless integration with the factory bumper Motorsport-inspired styling adds aggressive presence without overdoing it Bottom line: Upgrade the rear of your G87 M2 with a diffuser that delivers both style and function. Bolt it on and give your car the aggressive, high-performance edge it deserves.
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Vorsteiner - Corporate Logo
T#:9416032
Part#: 4001BMV
Ships on Nov 6, 2026
Starting at $ 1,895.00 USD
Starting at $ 1,895.00 USD
GTS: This Vorsteiner rear diffuser was designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from high-quality 1x1 twill weave, this part attaches easily and accentuates your BMW's natural body lines, thus creating a high-class performance look. Professional installation is recommended. Vorsteiner is a company that was conceived through the imagination of creating the highest quality parts for the most discerning vehicles and clientele. The relentless pursuit of advancement and perfection is seen not only in the unmatched automotive parts, but also in the hands of carbon fiber craftsmen to create purely sensational parts for the most deserving and elite vehicles. GTS-V: The VRS GTS-V Aero Carbon Fiber Rear Diffuser from Vorsteiner is a high quality, lightweight diffuser that has been developed to add a significantly more aggressive style to your BMW! Rear diffusers on standard street cars are limited in how effective they can be in aiding with downforce, but with aggressive fins can still aid in preventing air turbulence at the rear of the vehicle.
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ADRO INC. - Corporate Logo
T#:27605446
Part#: A14A70-1301
Ships in 3 Business Days
$ 650.00 USD
$ 650.00 USD

The 2023+ BMW G20 M340i LCI Rear Winglet offers an aggressive aesthetic to complete the rear-end of the vehicle. Crafted from premium carbon fiber, this original design is hand-made and offers the best in the market, making it the perfect choice for BMW fans.

Includes:

  • 2 Carbon Diffuser Side Fins
  • 3M Tape
  • Hardware
  • Installation manual
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ADRO INC. - Corporate Logo
T#:27638764
Part#: A14A50-1301
Ships in 3 Business Days
$ 2,950.00 USD
$ 2,950.00 USD
Make that quad exhaust pop even more with the ADRO carbon fiber rear diffuser for the G80 BMW M3. Featuring a more aggressive design, carefully engineered aero, and a beautiful carbon fiber finish, this is by far the highest quality and most aggressive rear diffuser currently available for the G80 platform. *Does NOT fit M Performance Center Exhaust*
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ADRO INC. - Corporate Logo
T#:49335150
Part#: A14B30-1301
Ships in 3 Business Days
$ 2,850.00 USD
$ 2,850.00 USD
Give the rear of your G90 M5 the upgrade it deserves with the ADRO Carbon Fiber Rear Diffuser — a bold, functional aero enhancement that blends motorsport aggression with factory-level refinement. With its track-inspired geometry and race-ready styling, this diffuser adds visual depth and attitude while keeping the M5’s premium design language intact. Made from ultra-lightweight pre-preg carbon fiber, the diffuser strikes the perfect balance between strength, weight reduction, and show-stopping looks. A tight, consistent carbon weave paired with a deep gloss finish delivers serious visual impact, while the underlying design is all about performance. Using full 3D scans of the G90 chassis and validating the shape through Computational Fluid Dynamics (CFD), ADRO ensured seamless integration with the factory rear bumper — no cutting, trimming, or compromises required. Those sculpted fins and sharp edges aren’t just eye candy. They’re engineered to control airflow, helping reduce rear-end lift and improve stability at higher speeds without hurting daily drivability. Why it deserves a spot on your G90 M5: Pre-preg Carbon Fiber Construction – Lightweight, high-strength carbon fiber with a flawless gloss finish Factory-Accurate Fitment – 3D scanned for precise alignment with the OEM rear bumper CFD-Optimized Aerodynamics – Designed to reduce drag and enhance high-speed stability Track-Inspired Styling – Aggressive fins and crisp lines that elevate the rear profile Bottom line: whether you’re after real aerodynamic gains or simply want a more aggressive rear-end presence, the ADRO G90 M5 Rear Diffuser delivers both. Bolt it on, step back, and let the rear speak for itself.
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ADRO INC. - Corporate Logo
T#:49335152
Part#: A14B30-1201
Ships in 3 Business Days
$ 1,950.00 USD
$ 1,950.00 USD
Engineered specifically for the next-generation BMW M5, the ADRO Carbon Fiber Front Lip adds serious motorsport attitude and functional aero to the G90’s front end. Designed to enhance the factory design rather than overpower it, this lip sharpens the nose, improves airflow, and gives your M5 a lower, more planted stance with true OEM-plus appeal. Built from lightweight, high-strength pre-preg carbon fiber, this front lip delivers the perfect mix of durability, weight reduction, and aggressive styling. A tight, consistent carbon weave paired with a deep gloss finish ensures show-quality looks, while the underlying design is all about performance. Using full 3D scans of the G90 M5, ADRO engineered this piece for factory-accurate fitment that integrates seamlessly with the stock front bumper — no trimming, cutting, or compromises required. Developed using Computational Fluid Dynamics (CFD), the profile is optimized to manage airflow efficiently, balancing downforce and drag to enhance high-speed stability without hurting everyday drivability. Whether you’re carving back roads or simply want a more commanding front-end presence, this lip gets the job done. Why it belongs on your G90 M5: Pre-preg Carbon Fiber Construction – Lightweight, high-strength carbon fiber with a flawless high-gloss finish Factory-Accurate Fitment – 3D scanned for precise alignment with the OEM front bumper CFD-Refined Aerodynamics – Optimized to improve stability by balancing downforce and drag Track-Inspired Styling – Aggressive contours that give the G90 M5 a sharper, more athletic front-end look Bottom line: if you’re looking to elevate your G90 M5’s front-end styling while adding real aerodynamic benefit, the ADRO Carbon Fiber Front Lip delivers. Bolt it on, step back, and let your M car do the talking.
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Vorsteiner - Corporate Logo
T#:55821686
Part#: BMV3250
Special Order: No Guaranteed ETA
New Item
$ 2,515.99 USD
$ 2,515.99 USD
Track-ready autoclave carbon fiber diffuser optimizing high-speed downforce and airflow.
Vorsteiner - Corporate Logo
T#:5122289
Part#: BMV3350
Special Order: No Guaranteed ETA
$ 2,995.00 USD
$ 2,995.00 USD
Carbon fiber body parts are starting to become a dime-a-dozen, but this has caused a reduction in part quality. Vorsteiner takes great care to ensure every carbon fiber component they produce is of the highest quality, putting every piece through an independent inspection process to look for any potential imperfections before they leave the facility. In addition, the high gloss clear coating applied to their carbon fiber parts is a UV ray inhibiting coating that won't discolor or peel after only a few years of sun exposure. Looking to make your G8x M3 or M4 more unique? Then this may be the perfect option for you! Vorsteiner's VRS Aero Rear Diffuser is designed for those looking to add some flair and function to their vehicle. This diffuser is composed of durable Carbon Fiber material which comes in a glossy finish. In addition to being lighter and more aggressive looking, this diffuser also allows for an increase in downforce thanks to its design.
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Vorsteiner - Corporate Logo
T#:11857199
Part#: BMV8050
Special Order: No Guaranteed ETA
$ 2,495.00 USD
$ 2,495.00 USD
In full carbon fiber, the fins extend beyond the rear bumper, providing race-inspired enhancements which directly replace the OEM lower diffuser. The Vorsteiner aero kit comprises of 4 components that amplify the visual appearance, providing an upgrade to the BMW M8 platform.
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Vorsteiner - Corporate Logo
T#:11857197
Part#: BMV8025
Special Order: No Guaranteed ETA
$ 1,195.00 USD
Free Shipping on orders $49 and up
The Vorsteiner aero kit comprises of 4 components that amplify the visual appearance, providing an upgrade to the BMW M8 platform. Amplifying the M8’s existing body lines, these eyebrows give the look that the platform deserves.
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Vorsteiner - Corporate Logo
T#:396626
Part#: 6001BMV
Special Order: No Guaranteed ETA
$ 1,895.00 USD
$ 1,895.00 USD

This Vorsteiner rear diffuser was designed to provide an aggressive, individual stylistic touch to your BMW without being overbearing. Constructed from high-quality 1x1 twill weave, this part attaches easily and accentuates your BMW's natural body lines, thus creating a high-class performance look. Professional installation is recommended.

Vorsteiner is a company that was conceived through the imagination of creating the highest quality parts for the most discerning vehicles and clientele. The relentless pursuit of advancement and perfection is seen not only in the unmatched automotive parts, but also in the hands of carbon fiber craftsmen to create purely sensational parts for the most deserving and elite vehicles. 

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Vorsteiner - Corporate Logo
T#:38229084
Part#: BMV5650
Special Order: No Guaranteed ETA
$ 1,695.00 USD
$ 1,695.00 USD
In celebration of Vorsteiner's 20th anniversary, the company has introduced a modernized version of the V-CSL Carbon Fiber Program for the BMW E46 M3. The new V20 program features dual acorn-shaped snorkels integrated into the front bumper, along with a redesigned one-piece front spoiler. The double-sided carbon fiber hood includes raised vents on both sides to enhance hot air extraction from the engine bay. Additionally, the rear diffuser now incorporates dual diffuser elements, optimizing airflow. Limited to just 103 units, the V20 pays tribute to the remarkable horsepower per liter of the BMW E46 CSL.
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