SKU: 68374579557

Dinan Rear Diffuser Surround for 2021-2025 BMW M3/M4 D980-0049

Sale price$427.48 Regular price$474.98
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Dinan Rear Diffuser Surround for 2021-2025 BMW M3/M4 D980-0049Dinan Rear Diffuser Surround 2021 2025 BMW M3 M4 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

Dinan Rear Diffuser Surround - 2021-2025 BMW M3/M4

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

Specs:

Brand Dinan
Emission Code 5
Grade Type Performance
Labor Time (Hours) 1
Material Gloss Twill Carbon Fiber
Product Type Aero
Warning California Proposition 65

Application:

Year Make Model Submodel
2021-2025 BMW M3 Base
2021-2025 BMW M3 Competition
2022-2025 BMW M3 Competition xDrive
2021-2025 BMW M4 Base
2021-2025 BMW M4 Competition
2021-2025 BMW M4 Competition xDrive
2022-2025 BMW M4 Competition xDrive
2022-2024 BMW M4 Competition
2023-2025 BMW M4 CSL
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 68374579557

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KDK in Texas
Carnegie, US
★★★★★ 3
Pretty Colors to Encourage Me to Walk!
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
Hum. Extra large does not seem extra large. I have a slender but size 10-10.5 foot. Will keep but was hoping for a looser fit. Bought to match an Under Armour walking outfit.
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Reviewed in the United States on May 16, 2026
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Patti J Fredley
Charlottesville, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
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Reviewed in the United States on March 6, 2026
L
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LC
Boise, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
L
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Lucy Mejia
Battle Creek, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Twins9
Bozeman, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026

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