2015 Subaru WRX STI — Should You Buy One?
Typical asking price: $22,000–$34,000. There are 2 high-severity known issues you need to know before handing over a check.
Kestrel Take
The last of the hydraulic-steering, big-wing STIs and a future classic. The EJ257 is the same double-edged sword as always — strong stock, fragile under a bad tune. Bought by enthusiasts and often modified and tracked. A stock, clean-title, well-maintained one is the smart buy.
Known Issues for the 2015 Subaru WRX STI
Ranked by wallet impact. These are documented, recurring problems — not freak accidents.
Aggressive tunes, detonation, or neglected oil crack ringlands and spin bearings. Verify the tune, compression, and oil history.
Repair cost range: $4,000-$9,000
Most were modified; verify build quality and inspect for hard use.
Repair cost range: Varies
Launches wear the clutch and driveline; salt states rust. Inspect all.
Repair cost range: $800-$3,500
Crashed cars return with washed titles; verify carefully.
Repair cost range: Reflected in value
Walk-Away Red Flags
- ✗Aggressive unknown tune
- ✗Low or uneven compression
- ✗Salvage title
- ✗Mismatched tires or driveline noise
Good Signs
- ✓Stock or a documented conservative tune
- ✓Healthy compression and clean title
- ✓Complete oil and service history
- ✓Adult-owned
Found a specific Subaru WRX STI?
This page covers what goes wrong on the 2015 Subaru WRX STI in general. The Kestrel report covers this specific car— the asking price vs. market, the photos, the seller's description, and a BUY / NEGOTIATE / WALK AWAY verdict with a negotiation script.
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Known issues on this page are based on documented owner reports, NHTSA complaints, class-action records, and manufacturer technical service bulletins. Individual vehicles vary. A pre-purchase inspection by a trusted mechanic is always worth doing.
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