APR Performance - Hyundai Genesis Side Rocker Extensions 09+ z4 When striving for more power

When striving for more power and greater response

Cut out sections of the lower undertray design also retain the functionality of the factory brake system's cooling ducts

power and driving pleasure

The package includes everything that is needed to install the product straight out of the box

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APR Performance - Hyundai Genesis Side Rocker Extensions 09+ z4 When striving for more powerAPR Side Rocker Extensions are the next step to help aerodynamically tune the handling of a car. 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