GD/GG
Subaru WRX STI (2004–2007)
Maintenance Schedule
8 recurring services keep the 2004–2007 Subaru WRX STI healthy — starting with oil changes every 3,750 miles. Budget roughly $2,400–3,800 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 2004, 2005, 2006, 2007
Full schedule
Intervals follow the factory maintenance schedule for the 2004-2007 Subaru WRX STI. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 3,750 mi or 6 mo | $55–85 | Full synthetic oil and filter replacement (turbo) |
| Brake Fluid | Every 30,000 mi or 2 yr | $75–110 | High-performance brake fluid replacement |
| Spark Plugs | Every 60,000 mi or 5 yr | $120–200 | Iridium spark plugs replacement (turbo 4-cyl) |
| Transmission Fluid | Every 60,000 mi or 5 yr | $120–200 | Manual transmission fluid change |
| Differential Service | Every 60,000 mi or 5 yr | $150–250 | Center, front, and rear differential fluid change |
| Turbo Service | Every 60,000 mi or 5 yr | $300–500 | Turbo system inspection and service |
| Coolant Flush | Every 60,000 mi or 5 yr | $85–140 | Cooling system flush and refill |
| Timing Belt | Every 105,000 mi or 105 mo | $700–1,200 | Timing belt and water pump replacement |
Common questions
How often should I change the oil on a 2004–2007 Subaru WRX STI?
Every 3,750 miles or 6 months, whichever comes first. A typical U.S. shop charges $55–85. Full synthetic oil and filter replacement (turbo).
How much does it cost to maintain a Subaru WRX STI (2004–2007)?
Routine maintenance on the 2004–2007 Subaru WRX STI runs roughly $2,400–3,800 over 100,000 miles at typical U.S. shop prices, spread across 8 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this WRX STI?
Timing Belt at $700–1,200, due every 105,000 miles. Timing belt and water pump replacement.
Cost ranges are typical U.S. independent-shop and dealer estimates; your local prices vary. Severe driving — towing, short trips, extreme heat or cold — shortens many intervals. Information here is general and may be estimated or AI-assisted — not professional, medical, or veterinary advice. Verify against your owner's manual, a professional, or your vet before acting. See our Terms & Disclaimer.