AutoTecknic Dry Carbon Rear Diffuser Trim Set G80 G81 M3 G82 G83 AutoTecknic Dry Carbon OEM Spec Rear Splitter Set G80 M3 G82 M4 AutoTecknic Dry Carbon Rear Diffuser Trim Set G80 G81 M3 G82 G83 AutoTecknic Dry Carbon Rear Diffuser Trim Set G80 G81 M3 G82 G83. Product Description This dry carbon rear diffuser trim set is AutoTecknic's newly released dry carbon fiber collection for the G8X M3 M4. Manufactured using 100% genuine 3K Twill Weave (2X2) Pre Preg Carbon Fiber with our signature autoclave technology this diffuser trim set is finished with multiple coatings of high gloss UV resistant clear coat. Following the weight saving principles of motorsport ideals we utilize the autoclave vacuum forming process to produce this diffuser trim set with superior strength and fitment. The diffuser trim set is designed to mount directly onto the factory mounting location around the diffuser for a fast and straightforward installation. Dry carbon is the highest quality version of carbon fiber products that are produced. Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed 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 vacuum (autoclave) to cure appropriately. This 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 fewer pinholes and virtually no air pockets in the carbon. This AutoTecknic dry carbon rear diffuser trim set comes with durable and precise mounting clips. It is made with our autoclave technology for the ultimate lightweight high durability and exact fitment. Fit all year of the G8X M3 M4 OEM Rear Bumper. A total of 3 pieces are included in the diffuser trim set. Complete the full carbon fiber diffuser formation with these diffuser trim set.