Case file · SUBARU-WRX-2015-2021 · Field document

Subaru WRX 2015–2021 · Pre-purchase checklist

Bring this to the inspection. Every check below is specific to this generation's documented failure modes — not generic used-car advice.

1. Check 01

   Demand the tune/mod history. A flash tune, downpipe, or big turbo on the FA20DIT or EJ257 dramatically raises bearing/ringland risk. No documentation = assume the worst and price accordingly (or walk).

2. Check 02

   Pull a recent oil sample / ask about oil consumption. The FA20DIT is known to drink oil; check the dipstick and ask how often they top off. Metallic glitter or a low level on a 'topped before sale' car is a red flag for bearing wear.

3. Check 03

   Cold-start and listen for bottom-end knock or a metallic rattle that quiets as it warms — early bearing-failure tell. Have it inspected by a Subaru-literate shop before buying.

4. Check 04

   On the WRX manual, test the clutch hard: feel for judder/shudder when easing off from a stop, listen for a throwout-bearing whine that changes with the pedal. A clutch job here is transmission-out labor.

5. Check 05

   On the CVT (WRX automatic), drive it from cold at low speed and light throttle and feel for shudder or hesitation — early TR690 torque-converter complaint.

6. Check 06

   Ask when (or if) the intake valves were ever walnut-blasted. Most VA WRXs past ~60k–80k miles are carrying significant carbon; a never-cleaned high-mileage car will feel down on power.

7. Check 07

   Check for an alignment/odd tire wear and listen for wheel-bearing growl at speed — a common chassis wear item.

8. Check 08

   Verify the EJ257 (STI) short-block warranty-extension status by VIN at a Subaru dealer if the car is within the window.