This carbon fiber side skirts extension kit is designed for BMW F80 M3 and F82 M4. It functions as a side skirt extension and rocker splitter, providing an integrated look with other aero components such as a front bumper lip, fin splitters, spoilers and canards. The carbon fiber construction offers a strong, lightweight upgrade with a distinctive weave that complements the M3 and M4 styling. Key benefits Enhanced aero profile: extends the rocker line to create a more cohesive, aggressive silhouette and contribute to stability at higher speeds when used with compatible aero parts. Aesthetic upgrade: carbon fiber finish adds a , raceinspired appearance that complements the BMW M design language. Rocker protection: helps shield the lower rocker area from curb contact and road debris, helping to maintain a cleaner look. Lightweight and strong: made from carbon fiber to balance strength with weight efficiency. Coordinated look with existing aero parts: designed to work in conjunction with front bumper lip, fin splitter, spoiler and canards for a unified aero kit. Key attributes Compatibility: BMW F80 M3 and F82 M4 Material: Carbon fiber Functionality: Side skirt extension and rocker splitter; can be paired with front bumper lip, fin splitter, spoiler and canard components Finish: Carbon fiber weave appearance Dimensions: Not specified in the listing Use cases Track day or performance driving: when used as part of a complete aero setup with compatible front lip and splitters, it helps create a balanced lower profile and supports higher speed stability. Street performance upgrade: adds an aggressive, coordinated look to the M3/M4 while providing rocker protection during everyday driving. Car shows and photography: highlights the carbon fiber aesthetic and the extended rocker design, enhancing the overall presentation of the vehicle. Notes Please verify compatibility with your specific BMW build and any additional aero components you plan to use. Dimensions are not provided in the listing; confirm fitment against your vehicle and installation requirements before .