About the M3 / M4 VSX carbon fiber rear diffuser:
The PhaseCarbon M3 / M4 VSX carbon fiber rear diffuser fits beautifully onto the F80 generation M3 super sedan. It also fits the F82 generation M4 super coupes as well. This rear diffuser not only looks amazing, it’s also aerodynamically designed to efficiently channel air and reduce drag. For anyone looking to upgrade their stock M3 or M4 with an aggressive yet functional, sturdy yet light weight carbon fiber rear diffuser, look no further.
Constructed from 3K premium 2×2 twill weave carbon fiber, the PhaseCarbon product lineup offers both visual appeal & incredible structurally integrity. Unlike cheaper alternatives, PhaseCarbon products have consistent weave patterns with a UV resistant gloss finish that will last the test of the elements. You can buy with confidence knowing that you will get quality products with great fitment every single time.
While these aerodynamic upgrades are seemingly simple to install, we do encourage patrons to bring their vehicles to have it installed professionally at a body shop. Improper installation can lead to parts dislodging from the body panels even potentially damaging the body panels themselves. If you are local to the Southern California area, we have several partner shops that are ready to serve you and your installation needs to ensure that your new investment is installed properly, and look absolutely gorgeous.
Actual customer photos: