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BMW F8x M3/M4 RWS Carbon Fiber Diffuser

BMW F8x M3/M4 RWS Carbon Fiber Diffuser
Part Number: bmwf8x052
Brand: RW Signatures
List Price: $1,500.00
Price: $1,199.95

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Freshly redesigned for your M3 or M4! The RWS carbon fiber rear diffuser v2 features new 3 fin design for a modded look without being overly aggressive. The RWS F8x diffuser is perfect for the customer who wants the unique aggressive carbon fiber diffuser but doesnt want to worry about scraping or getting caught on parking blocks that can be an issue with the beefier diffuser options we offer. Each RW Signature M3/M4 diffuser is designed in-house at our Anaheim, CA location! The piece is then produced with genuine 2x2 CF in conjunction with industry leading resins and clearcoats which ensures this diffuser looks amazing on day 1 and years down the road. We complete each item with a UV resistant clearcoat - No yellowing, fading or discoloration! Installation takes the experienced tech about 30 minutes from start to finish. Stand out from all the other M3 and M4's on the road today with a diffuser that's as unique as your vehicle , the RW Signature carbon fiber diffuser.

Please contact a carbon fiber specialist at if you have any questions regarding this RWS F8x Diffuser.


  • 2015+ BMW F80 M3 Sedan
  • 2015+ BMW F82 M4 Coupe
  • 2015+ BMW F83 M4 Convertible


  • Designed in house at RW Carbon
  • Aggressive design, yet great ground clearance
  • 2x2 carbon fiber construction
  • Completed with UV resistant clearcoat
  • Inspected before shipping from our California warehouse
  • Typically in stock at our location

This RWS carbon fiber diffuser for the F8x M3 and M4 installs in place of your OEM diffuser and will re-use existing mounting locations. Self tapping screws will be needed for the end pieces. Professional installation is recommended. If you need help in the Southern California area we got you covered!

Why Choose RW Carbon?
We know there are many companies out there claiming to have the best carbon fiber exterior additions for your BMW. At we pride ourselves on taking the time to quality check every piece we ship out. Many other competitors ship you a product that comes straight from overseas - without taking the time to check it. If you order one of these parts you could receive a part that is damaged, has scratches in the clear coat, or possesses overall poor carbon fiber construction. By choosing RW Carbon we make the promise to deliver you a consistent, quality product that is shipped from our Southern California location - the first and every subsequent time you order from us. Additionally, all products shipping from our warehouse are meticulously inspected, and packaged to ensure you receive the best possible RWS diffuser for your BMW M3 or M4. 

rw carbon fiber bmw f80 m3 rw signatures carbon fiber rear diffuser

rw carbon fiber bmw f80 m3 rw signatures carbon fiber rear diffuser

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Part # Description Price
bmwf8x052 BMW F8x M3/M4 RWS Carbon Fiber Diffuser $1,199.95 Add to Cart

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Fits These Applications:

Year Make Model SubModel Engine Transmission Drive
2015 - 2019 BMW M3 F80 RWC
2015 - 2020 BMW M4 F82 RWC
2015 - 2020 BMW M4 F83 RWC