Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Steering Angle
- Place the vehicle on turning radius gauge.
- While depressing the brake pedal, turn the steering wheel fully to the left and right.
- With the steering wheel held at each fully turned position, measure both the inner and outer wheel steering angles.
| Model | Tire size | Inner wheel | Outer wheel |
|---|---|---|---|
| WRX model | 235/45R17 | 37.5°±1.5° | 32.9°±1.5° |
| 245/40R18 | 36.4°±1.5° | 32.0°±1.5° | |
| STI model | 245/40R18 245/35R19 245/35ZR19 |
36.3°±1.5° | 32.0°±1.5° |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.