AEM 08-11 WRX/STi Wrinkle Red Cold Air Intake Fuel Delivery>Fuel Pressure Regulators Attached to the heat shield

Attached to the heat shield is an aluminum coolant overflow reservoir that replaces the stock reservoir so that the air intake will fit properly

The AEM 21-778C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing

Bolt Pattern: 5x112

30-2013: Temperature Sensor with 1/8" NPT Male Thread

AEM 08-11 WRX/STi Wrinkle Red Cold Air Intake Fuel Delivery>Fuel Pressure Regulators Attached to the heat shieldThe AEM 21 478WR Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno tested to fit specific Subaru WRX, WRX STI, Impreza WRX and Impreza WRX STI models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air