APR Performance - Subaru WRX/STI Brake Cooling Ducts 15-17 vq35hr It plugs straight into the

It plugs straight into the factory ECU location and retains all the original sensors and fuel systems

Size guide

The added downforce stabilizes the cars chassis during hard cornering and increases traction for fast lap times

Signature X PIpe Design - Proper design leads to more power and not a choke point

four brackets

APR Performance - Subaru WRX/STI Brake Cooling Ducts 15-17 vq35hr It plugs straight into theThe APR Brake Cooling Ducts are Aerodynamically optimized to "funnel in" massive amounts of air. Also Known as the venturi effect, when the vehicle speed increases, this funneled in air increases in both pressure and velocity as it passes from the larger fontal area into the smaller pipe section of the brake duct. When matched with appropraite high temperature air duct hoses (not included purchase hoses from your favorite racing supply shop), the APR