Subaru WRX Manuals 2024 WRX Owner’s Manual | Page 480

472
Specifications
& Electrical System
Battery type Alternator s12aa03
75D23L
12 V-150 A Spark plugs SILKFR8A6 ( NGK )
& Tires
s12aa05
Tire size
235 / 45R17 97W
245 / 40R18 97Y
245 / 35R19 93Y
Wheel size
17 6 8J
18 6 8 1 / 2J
19 6 8 1 / 2J
Pressure
Front
Rear
33 psi ( 230 kPa , 2.3 kgf / cm 2 )
32 psi ( 220 kPa , 2.2 kgf / cm 2 )
35 psi ( 240 kPa , 2.4 kgf / cm 2 )
Wheel nut tightening torque
89 lbf · ft ( 120 N · m , 12 kgf · m )* 1
* 1 : This torque is equivalent to applying approximately 88 to 110 lbf ( 40 to 50 kgf ) at the end of the wheel nut wrench . If you have tightened the wheel nuts by yourself , have the tightening torque checked at the nearest automotive service facility as soon as possible . For the wheel nut tightening procedure , refer to “ Changing a Flat Tire ” FP383 .