BMW M

Racing Sport Concepts 2021 BMW G80 M3 G82 M4 Rear Diffuser

$4,495.00

The RSC Carbon Fiber Diffuser is designed and engineered in the United States to exaggerate the look of the OEM diffuser while making subtle changes to the mating sections and mounting tabs in order to improve fitment and the final look of the carbon fiber finish. 

The Highest Quality and Engineered Design Carbon Fiber Rear Diffuser for BMW M3 and BMW M4. 

Can be purchased as Upper Diffuser only or as a complete kit, with the Upper and Lower Diffuser.  

Product ID: RSCBMW3019-M3
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Anthony R. Verified Customer   
03-21-25

their site is very intuitive and easy to navigate. I would highly recommend AutoCouture as they sell quality products at fair prices

Merchant Choice

ive seen their builds on forums and HRE wheel gallery and liked them

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Jacob N. Verified Customer   
03-09-25

Good customer service.

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Yonatan A. Verified Customer   
03-03-25

Thank you

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