Autotecknic Aero Dry Carbon Extended-Fin Competition Rear Diffuser For BMW F82 M4


VENDOR: AutoTecknic

SKU: ATK-BM-0352-V2

You Save 10% ($59.50)

All orders will include an AutoTalent window decal


This is thw newly redesigned Dry Carbon Extended-Fin Competition Rear Diffuser for the F82 M4. Featuring larger fins for added aggressiveness and functionality. Designed to mount directly into the lower rear factory bumper for a simple and fast installation. This carbon fiber diffuser is made with our 100% true pre-preg technology for the ultimate light weight, high durability, and precise fitment. AutoTecknic Dry Carbon Fiber Diffuser is both highly visible and highly functional.

Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This piece of carbon is first placed into a mold, and then into a sealed autoclave to properly cure. This particular method creates the least amount of waste and forms a lighter version of carbon than the “wet” method. The autoclave vacuuming process of making dry carbon means that there are fewer pinholes and virtually no air pockets that form in the carbon. Dry carbon is the highest quality version of carbon fiber products that are produced.


  • Precise Fitment
  • High durability
  • Light weight
  • No drilling required
  • Featuring larger fins
  • Vacuumed formed process
  • Glossy carbon fiber finish
  • Pre-preg carbon materials
  • Virtually no air pockets that forms in carbon

          Vehicle Fitment:

          • 2015 Bmw F82 M4
          • 2016 Bmw F82 M4
          • 2017 Bmw F82 M4
          • 2018 Bmw F82 M4
          • 2019 Bmw F82 M4
          • 2020 Bmw F82 M4


                                                Images are for representation purpose only and may differ depending on application