Rear Diffuser for BMW G82 M4 S58 3.0L

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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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AUTOTECKNIC - Corporate Logo
T#:14419810
Part#: BM-0341
In Stock
$ 600.00

This product was last offered at the strikethrough price on
08-10-2026

$ 528.00 USD
Limited Qty Sale
$ 600.00

This product was last offered at the strikethrough price on
08-10-2026

$ 528.00 USD
Limited Qty Sale
The rear end of your G8X will thank you for this carbon diffuser trim set, giving it a more aggressive and sportier look! Manufactured from the highest-quality dry carbon, this diffuser set is one of the best carbon trim options on the market for your car!
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AUTOTECKNIC - Corporate Logo
T#:14452852
Part#: BM-0881
Ships in 7 Business Days
$ 895.00 USD
$ 895.00 USD
This rear diffuser is AutoTecknic's newly released dry carbon fiber product for the G8X M3/ M4. The diffuser is designed to mount directly onto the lower factory mounting location for a fast and straightforward installation. Manufactured using 100% genuine 3K Twill-Weave (2X2) Pre-Preg Carbon Fiber with our signature autoclave technology, this diffuser is finished with multiple coatings of high-gloss UV-resistant clear coat. Following the weight-saving principles of motorsport ideals, we utilize the autoclave vacuum forming process to produce this diffuser with superior strength and fitment. Change your car's look and satisfy your carbon cravings today!
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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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AUTOTECKNIC - Corporate Logo
T#:38655160
Part#: BM-0045-G82
Ships in 7 Business Days
$ 650.00 USD
Free Shipping on orders $49 and up
These Carbon fiber side splitters upgrade aerodynamics and create a bold appearance of your G82/G83 M4. Designed for optimal performance, durability, and a dynamic, track-ready aesthetic.

Akrapovic - Corporate Logo
T#:3018048
Part#: DI-BM/CA/9/G
In Stock at Vendor
$ 2,328.99 USD
Free Shipping on orders $49 and up
The stunning carbon-fiber diffuser is offered as an option with the choice of a high-gloss or matt finish. It is a completely new design from the one that comes as standard on the car, and it gives the rear of the M8 a more aggressive and sporty feel. It shows off the Akrapovic tailpipes to their full extent and is a perfect accompaniment to the exhaust suite. Fitment notice: With Akrapovič diffuser, hands-free trunk-lid opening/closing sensor is not working.
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Enthusiast Bundles - Corporate Logo
T#:37419794
Part#: 048254LAEBKT
In Stock
Sale - Save 36% $ 862.99

This product was last offered at the strikethrough price on
05-05-2026

$ 549.99 USD
Free Shipping on orders $49 and up
Sale - Save 36%
$ 862.99

This product was last offered at the strikethrough price on
05-05-2026

$ 549.99 USD
Free Shipping on orders $49 and up

G80 M3 Gloss Black High Kick Trunk Spoiler

Upgrade your G80’s rear with the Turner Motorsport Gloss Black High Kick Trunk Spoiler, engineered to enhance both the aesthetics and performance of your M3. This trunk spoiler is designed to flow seamlessly with your vehicle’s body lines, adding a sporty, aggressive edge while improving aerodynamics. Its high-gloss finish and motorsport-inspired shape will set your M3 apart from the crowd.

Crafted from durable, UV-stabilized ABS polymer, this spoiler is built to last while providing a sleek, high-performance look. No drilling, cutting, or modifications are required—just clean the trunk surface, apply the spoiler using the high-strength dual-sided tape, and you’re good to go. For a personalized touch, the spoiler can also be painted to match or contrast your vehicle’s color.

Features & Specifications:

Aerodynamic Design: High-kick shape enhances aerodynamics and adds an aggressive, sporty look. Durable Construction: Made from UV-stabilized ABS polymer for a long-lasting, high-gloss finish. Perfect Fitment: Designed to follow the factory body lines for a seamless integration. Easy Installation: No drilling or modifications required—simply adhere with pre-applied high-strength dual-sided tape. Customizable: Can be installed as-is or prepped for custom paint. G80/G82 Gloss Black Rear Diffuser

Elevate your M3’s exterior with the Turner Motorsport Gloss Black Rear Diffuser. Designed to perfectly complement the aggressive styling of the G80 and G82, this diffuser features a deep profile and bold fin design that enhances the rear bumper’s contours. Crafted from lightweight, vacuum-formed ABS polymer, it’s both durable and sleek, ensuring that your M3’s rear end gets the attention it deserves.

This direct-fit upgrade uses existing factory mounting locations and hardware, making installation simple and hassle-free. The diffuser’s design adds dimension to the rear of the vehicle, accentuating the exhaust exits and giving the car an even more dynamic presence. Whether you're upgrading to larger exhaust tips or simply want to enhance the look of your M3, this rear diffuser is the perfect choice.

Features & Specifications:

Aggressive Styling: Deep profile with bold fins and outlined design accentuates the G80/G82’s rear bumper and body lines. Perfect Exhaust Fitment: Designed to house quad 4.0" exhaust tips, perfect for both upgraded and factory exhaust systems. Precision Engineering: Developed in-house using advanced 3D laser scanning and CAD technology for a precise fit. Durable Construction: Made from lightweight, UV-stabilized gloss black ABS polymer for a durable, weather-resistant finish. Easy Installation: Direct-fit design mounts to factory locations with supplied hardware—no modifications required. Take your G80 or G82 M3 to the next level with this performance-inspired Enthusiast Bundle. Featuring the Turner Motorsport Gloss Black High Kick Trunk Spoiler and Rear Diffuser, this kit delivers aggressive styling, enhanced aerodynamics, and easy installation. Perfect for those looking to make a statement on the road, this upgrade combines precision engineering and OEM+ fitment for the ultimate performance aesthetic.

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AUTOTECKNIC - Corporate Logo
T#:14419866
Part#: BM-0880
Ships in 7 Business Days
$ 850.00 USD
$ 850.00 USD
This rear diffuser is AutoTecknic's newly released dry carbon fiber product for the G8X M3/ M4. The diffuser is designed to mount directly onto the lower factory mounting location for a fast and straightforward installation. Manufactured using 100% genuine 3K Twill-Weave (2X2) Pre-Preg Carbon Fiber with our signature autoclave technology, this diffuser is finished with multiple coatings of high-gloss UV-resistant clear coat. Following the weight-saving principles of motorsport ideals, we utilize the autoclave vacuum forming process to produce this diffuser with superior strength and fitment.
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Dinan Carbon Fiber Rear Diffuser Surround - G80/G82/G83
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:23020158
Part#: D980-0049
Back Ordered
11% off MSRP $ 1,068.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 949.99 USD
Free Shipping
11% off MSRP
$ 1,068.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 949.99 USD
Free Shipping
Rather than replace the full diffuser and have potential fitment challenges with various exhaust options Dinan has opted to retain the factory gloss black lower portion of the diffuser and only replace the upper diffuser surround with a carbon fiber accent piece. This solution not only guarantees the carbon cosmetics will always play well with any personalization of the exhaust that is adopted but also offers an economical option compared to much pricier alternatives. Together with the Dinan Rear Side Splitters, the combination creates a "full" rear diffuser that is restrained but elevated and creates a nuanced OEM+ option for the marketplace. Features: 2x2 gloss twill dry carbon fiber (pre-preg) manufactured to be impact-resistant, durable, and strong Clear-coated for maximum UV protection and fade resistance Utilizes factory mounting tabs for an easy installation with a clean fit and finish Pair together with the Dinan Rear Side Splitters to complete the full rear look
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Dinan Carbon Fiber Rear Side Splitters - G82/G83
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:23020150
Part#: D980-0050
Ships in 6 Business Days
11% off MSRP $ 658.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 584.99 USD
Free Shipping
11% off MSRP
$ 658.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 584.99 USD
Free Shipping
Dinan Carbon Fiber Rear Side Splitters (rear winglets) offer a simple straightforward solution to enhancing the rear quarters of your G82/G83 M4. Together with the Dinan Rear Diffuser Surround, the combination creates a "full" rear diffuser that is restrained but elevated and creates a nuanced OEM+ option for the marketplace. Features: 2x2 gloss twill dry carbon fiber (pre-preg) manufactured to be impact-resistant, durable, and strong Clear-coated for maximum UV protection and fade resistance Includes mounting screws and also utilizes factory mounting tabs for an easy installation with a clean fit and finish Pair together with the Dinan Rear Diffuser Surround to complete the full rear look
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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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Akrapovic - Corporate Logo
T#:37993409
Part#: DI-BM/CA/9/CF
In Stock at Vendor
$ 2,369.99 USD
$ 2,369.99 USD

Akrapovic Rear Forged Carbon Fibre Diffuser - Matte Finish | BMW G80 M3 G82 M4

The Akrapovic Rear Forged Carbon Fibre Diffuser - Matte Finish | BMW G80 M3 G82 M4 is a premium accessory designed to transform the look and performance of your BMW. Expertly hand-crafted in-house with ABE type approval, this chopped carbon fibre diffuser is engineered to accentuate the Akrapovič exhaust tailpipes, delivering a bold and sporty aesthetic. The matte finish adds a modern, sophisticated touch, while the lightweight construction ensures improved performance. Compatible with BMW G80 M3, G82 M4, xDrive, CSL, LCI, and M4 (G83) Competition models, this diffuser is a perfect blend of style and functionality.

Key Benefits:

  • Enhances the sporty and aggressive appearance of BMW G80 M3 and G82 M4
  • Showcases Akrapovič exhaust tailpipes for a standout design
  • Matte finish adds a modern and sophisticated aesthetic
  • Lightweight forged carbon fibre construction improves performance and durability
  • Hand-crafted with precision and ABE type approval for unmatched quality
  • Fits xDrive, CSL, LCI, and M4 (G83) Competition models for versatility

Upgrade your BMW with the Akrapovic Rear Forged Carbon Fibre Diffuser - Matte Finish and enjoy a perfect blend of style, performance, and craftsmanship.

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Akrapovic - Corporate Logo
T#:3018047
Part#: DI-BM/CA/9/M
Ships on Sep 17, 2026
$ 1,768.99 USD
Free Shipping on orders $49 and up
The stunning carbon-fiber diffuser is offered as an option with the choice of a high-gloss or matt finish. It is a completely new design from the one that comes as standard on the car, and it gives the rear of the M8 a more aggressive and sporty feel. It shows off the Akrapovic tailpipes to their full extent and is a perfect accompaniment to the exhaust suite. Fitment notice: With Akrapovič diffuser, hands-free trunk-lid opening/closing sensor is not working.
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Akrapovic - Corporate Logo
T#:37993406
Part#: DI-BM/CA/9/GB
Back Ordered
$ 2,892.99 USD
$ 2,892.99 USD

Akrapovic Rear Carbon Fibre Diffuser - High Gloss Black | G80 M3 G82 M4

The Akrapovic Rear Carbon Fibre Diffuser - High Gloss Black | G80 M3 G82 M4 is a premium accessory designed to elevate the aesthetics and performance of your BMW. Crafted in-house with ABE type approval, this lightweight carbon fibre diffuser highlights the tailpipes of the Akrapovič exhaust system, creating a striking visual impact. The updated version features a high-gloss black painted frame, ensuring a seamless integration with the rear of your vehicle. Compatible with G80 M3, G82 M4, xDrive, CSL, LCI, and M4 (G83) Competition models, this diffuser is a perfect blend of style and functionality.

Key Benefits:

  • Enhances the sporty appearance of BMW G80 M3 and G82 M4
  • Accentuates Akrapovič exhaust tailpipes for a bold, aggressive look
  • High-gloss black frame ensures a seamless rear design integration
  • Lightweight carbon fibre construction improves vehicle performance
  • Hand-crafted with ABE type approval for superior quality
  • Fits xDrive, CSL, LCI, and M4 (G83) Competition models

Transform your BMW with the Akrapovic Rear Carbon Fibre Diffuser - High Gloss Black and experience a perfect combination of style, performance, and craftsmanship.

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