Air Intake Cleaner-Inlet Duct Tube is a direct fit for the following:

2008-2011 Subaru Impreza 2.5L
2008-2018 Subaru STI 2.5L TURBO 6MT 4WD
2008-2018 Subaru WRX 2.5L TURBO 5MT / 6MT

Genuine Subaru Part Number: 46012AG001