APR Side Rocker Extensions are the next step to help aerodynamically tune the handling of your 2015-2018 BMW M4 F82. Made of lightweight and durable carbon fiber composites, APR Side Rocker Extensions help reduce lift at high speeds by preventing air at the sides of the car from rolling underneath the car. The reduced lift helps to stabilize the car during high-speed cornering and helps to increase traction for faster lap times.

Features:

• Carbon Fiber Construction
  All APR Side Rocker Extensions are made in carbon fiber composites for lightweight and high strength.
• Vehicle Specific Design
  APR Side Rocker Extensions are designed and manufactured for specific vehicles for perfect fitment.
• Mounting Hardware Included
  Screws, nuts, and washers are included to allow you to install the APR Side Rocker Extensions to your car.