Subaru WRX STI Problems: 8 Issues Every Owner Should Know

What are the most common Subaru WRX STI problems?

According to Au7o's analysis of 1,260+ owner reports, the 2004-2021 Subaru WRX STI has 8 documented issues. The most frequently reported are: Spun Rod Bearing Failure (EJ257), EJ257 Piston Ringland Failure, Oil Starvation During Hard Cornering (EJ257 Boxer Engine). Of these, 3 are rated critical and should be addressed promptly.

Is the Subaru WRX STI reliable?

The 2004-2021 Subaru WRX STI has 8 known issues documented across 1,260+ owner reports. 3 issues are rated critical: Spun Rod Bearing Failure (EJ257) and EJ257 Piston Ringland Failure and Oil Starvation During Hard Cornering (EJ257 Boxer Engine). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Subaru WRX STI problems?

Repair costs for known Subaru WRX STI issues range from $50 to $12,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Spun Rod Bearing Failure (EJ257), typically costs $5,000-$12,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Subaru WRX STI is the most reliable?

Reliability varies across model years of the Subaru WRX STI. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2004-2021 Subaru WRX STI with 8 documented issues from 1,260+ owner reports.

Subaru WRX STI Problems: 8 Issues Every Owner Should Know

All 8 Known Issues

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Frequently Asked Questions

What are the most common Subaru WRX STI problems?

Is the Subaru WRX STI reliable?

How much does it cost to fix common Subaru WRX STI problems?

What year Subaru WRX STI is the most reliable?