COBB SF Intake System - WRX MY15-21 CTS It is constructed of fiber

It is constructed of fiber reinforced compressed graphite and is intended to allow some relative movement

Manufacturer Part No: 44022AA180

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

and other rubber components

STI MY257 MY06-07/MY12-21

COBB SF Intake System - WRX MY15-21 CTS It is constructed of fiberSF 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