BMW M3/M4 OEM Style Replacement Rear Side Diffusers
SKU: 77943698706

BMW M3/M4 OEM Style Replacement Rear Side Diffusers

Sale price$323.53 Regular price$359.48
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

BMW M3/M4 OEM Style Replacement Rear Side DiffusersMHC+ BMW G80 G81 M3 OEM Style Replacement Rear Side Diffusers In Pre Preg Carbon Fibre replace the factory gloss black trim for a more premium look. These diffusers are a 1: 1 copy of the standard items so that you can enjoy OEM styling in the highest quality carbon fibre. Why choose pre preg carbon fibre? Unlike normal carbon fibre, pre preg carbon is reinforced for increased strength and durability. It can also be an astonishing 70% lighter than

MHC+ BMW G80 G81 M3 OEM Style Replacement Rear Side Diffusers In Pre Preg Carbon Fibre replace the factory gloss black trim for a more premium look. These diffusers are a 1:1 copy of the standard items so that you can enjoy OEM styling in the highest quality carbon fibre.

Why choose pre-preg carbon fibre?

Unlike normal carbon fibre, pre-preg carbon is reinforced for increased strength and durability. It can also be an astonishing 70% lighter than other carbon options, ideal for weight-saving. Quality-wise, pre-preg carbon is far more consistent meaning the chance of imperfections is dramatically reduced. The manufacturing process eliminates undesirable air bubbles and results in a perfect, sleek, smooth & high gloss finish, making the ultimate part to complement your vehicle. 

When you buy pre-preg, you are investing in a higher quality, longer-lasting part that will outlast other forms of carbon fibre and potentially save you money in the long term.

View our full in-depth installation guide:

PRODUCT SPECIFICATION

- 100% pure pre-preg carbon fibre construction
- OEM-style weave
- High gloss finish
- OEM-style design
- Fitment guarantee
- Includes all necessary hardware
- 3 Year warranty

COMPATIBILITY

- BMW G80 M3 Saloon (2021+)
- BMW G80 M3 Competition Saloon (2021+)
- BMW G81 M3 Touring (2023+)

WHAT'S IN THE BOX?

- Pair of MHC+ OEM-style replacement rear side diffusers
- Any necessary hardware

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 77943698706

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4.1 ★★★★★
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roger mendes
West Palm Beach, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
F
Verified Purchase
Fabric Crazy
Whiting, US
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
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Reviewed in the United States on February 3, 2026
T
Verified Purchase
the agitator
Boise, US
★★★★★ 4
Penny Loafer
Size: 11 Wide, Color: Burgundy Polished Full Grain
I am ending them bak and will order the sae shoe at size 10 1/2. Most shos I fit are 11 however these were too large. They are a beautiful shoe! I will ofder a 10 1/2
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Reviewed in the United States on January 13, 2025
H
Verified Purchase
Hugh62
Omaha, US
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025
B
Verified Purchase
BetterEveryDay
San Leandro, US
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025

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