COBB SF Intake System - WRX MY15-21 CTS Because the factory airbox on

Because the factory airbox on these models now incorporates a hydrocarbon trap (an emissions device)

Clutch Disc Diameter: 230mm (9in)

Manufacturer Part No: 44022AA180

The carbon airbox filter element is sealed with a black anodized billet aluminum cover locked in place with a dial lock

COBB SF Intake System - WRX MY15-21 CTS Because the factory airbox onSF INTAKE COBB's SF intake removes the restriction of the standard airbox and panel filter by replacing it with a high flow cloth conical filter. A composite plastic velocity stack MAF sensor housing reduces turbulence and a flow straightener ensures more accurate MAF readings. The included powder coated aluminum airbox ensures the intake system is pulling the coldest possible air for maximum air density and performance. Wire reinforced silicone