G8X M3/M4 GTR Vented Carbon Fiber Fenders - G80 M3/ G82 & G83 M4G8X GTR Style Vented Carbon Fiber Fenders G80 M3 G82 G83 M4 Give your G8X M3 or M4 an unmistakable motorsport presence with these GTR style vented carbon fiber fenders. Designed to dramatically sharpen the front end profile, these fenders improve airflow, reduce turbulence, and deliver a more aggressive, track focused aesthetic. Precision crafted from premium carbon fiber with a deep gloss finish, they integrate seamlessly with OEM body lines while