Subaru WRX STI Common Problems and Repair Costs

The Subaru WRX STI has documented issues used buyers should know about — including ringland failure. Here's a full breakdown by model year.

Known Issues — Subaru WRX STI (2004–2021)

What to Check Before Buying

• Run a VIN report for accidents and title issues
• Ask about Ringland failure — verify it has been addressed
• Check recalls at NHTSA.gov/recalls
• Have an independent mechanic inspect it ($100–$200)
• Ask for complete service records

Reliability Overview

The Subaru WRX STI can be a solid vehicle when maintained, but the issues above represent real financial risk. A pre-purchase inspection by a Subaru-familiar mechanic is strongly recommended.