Depending on configuration Your 2009 Subaru Impreza may come with one of three different tire sizes. The 2.5i uses P205/55R16 tires on 16 inch rims, while the 2.5GT and Outback Sport each use P205/50R17 tires on 17 inch rims. The upgraded Impreza WRX will use a different tire -- that is, the P225/45R17, also on 17 inch wheels. The recommended tire inflation for each of these is between 32 and 34 pounds per square inch for the standard load variants; You'll typically want to stay near the lower end of that range under normal operation. Though the bolt pattern is universally 5x100 with A56.1mm center bore, You'll need to ensure that all four tires match; though any configuration can technically accept any of these tires, You may need to replace all four rims and recalibrate Your speedometer if You're changing size.
Rob
November 24, 2023
The tire size for my 2009 Subaru Impreza 2.5L Outback Sport model came equipped from the factory : 205/50R17.
Mara D.
January 2, 2020
The tire size for the 2009 Subaru Impreza is 225/45R17. The tire pressure for the 2009 Subaru Impreza front is 33 psi and the rear are 32 psi. The wheel size for the 2009 Subaru Impreza is 17 inches.
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