Subaru WRX and STI (GE/GH/GR/GV, 2008-2014): Reliability mods
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What are the best reliability mods for the Subaru WRX and STI (GE/GH/GR/GV, 2008-2014)?
It depends on the car’s condition and how you use it. These are the 1 reliability build entry we have sourced for this car: Protect an EJ255/EJ257 from ringland failure (Limited). Each lists caveats, related problems and sources so you can match it to your goal.
Protect an EJ255/EJ257 from ringland failure Limited
Tune any modifications properly, run high-octane fuel, monitor knock and downshift rather than lug the engine; one tuning shop says the EJ25 turbo's pistons crack at the ringlands under detonation.
Caveats: Single tuner source. A failed ringland needs new pistons.
Related issues: EJ255/EJ257 ringland failure from detonation
Sources (1)
- How to Avoid Ringland Failure in your Subaru WRX / STI — Come and Drive It (vendor article; read 2026-10-15; search excerpt only)
More for this car
- All Subaru WRX and STI (GE/GH/GR/GV, 2008-2014) fitment answers · GE/GH/GR/GV common problems
- Newsletter archive: past issues with every new and corrected entry
Report a correction — spotted an error or have a better source? Email hello@chassisdex.com.