APR Side Rocker Extensions - Fits 15-21 Subaru WRX / STI subaru-baja-2003 Front Coil Spring Rate: 8

Front Coil Spring Rate: 8 kg/mm (448 lbs/in)

ensures versatility for different driving conditions

prototype intake

1991 Ford Aerostar XL

It can be installed externally or in-tank using optional hardware that is sold separately (see Images tab and part numbers

APR Side Rocker Extensions - Fits 15-21 Subaru WRX / STI subaru-baja-2003 Front Coil Spring Rate: 8APR 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