| Modification | WRX STI |
| Chassis ID | GH-GDB |
| Registration Year | 2004.6 |
| Exterior Dimensions, mm | 4415 x 1740 x 1425 mm |
| Interior Dimensions, mm | 1890 x 1380 x 1180 mm |
| Wheelbase, mm | 2540mm |
| Front/Rear Track, mm | 1490mm//1495mm |
| Curb Weight, kg | 1460kg |
| Body Type | Хардтоп |
| Doors/Seats | 4 door//5 |
| Model | EJ20 |
| Type | horizontally-opposed 4 cylinder DOHC 16-valves turbo |
| Bore X Stroke, mm | 92.0mmx75.0mm |
| Capacity, cc | 1994cc |
| Compression Ratio | 8.0 |
| Fuel System | EGI(電子制御燃料噴射装置:マルチポイント インジェクション) |
| Max. Power, HP/RPM | 280ps(206kW)/6400rpm |
| Max. Power, HP/RPM | 42.0kg m(412N m)/4400rpm |
| Supercharger | Turbo |
| Fuel tank capacity, L | 60 l |
| Fuel Efficiency, l/100 km | Unleaded premium gasoline |
| Fuel consumption, l/100 km | 10.2km/リットル (10/15) |
| Steering Column Length | Power assist equipped rack&pinion |
| Suspension – Front/Rear | Strut type Independent suspension |
| Brake – Front/Rear | Strut type Independent suspension |
| Front brake | Ventilated disk |
| Rear brake | Ventilated disk |
| Front wheel | 235/45R17 |
| Rear wheel | 235/45R17 |
| The minimum diameter of a turn | 5.7m |
| Number of steps / Type | 6MT |
| Drive | Full-time 4WD |
| LSD | standard |
| Front fog lights | It is not |
| Rear fog lights | It is not |
| Xenon headlights | Option |
| Additional front headlights | It is not |
| Front / rear spoiler | It is not//Standard |
| Rear wiper | Standard |
| Navigation | It is not |
| Navigational device | It is not |
| Audio | It is not |
| CD-player | It is not |
| Driver's air bag | Standard |
| Front passenger air bag | Standard |
| Side airbags | It is not |
| ABS | Standard |
| TRC | It is not |
| Safety belts with tensioner | Standard |
| Safety belts with tensioner | Standard |
| Safety belts with holding | Standard |
| The mechanism of fixation of children's seats | Standard |
| Safety planks | Standard |
| Brake assist | It is not |
| The design of the body, providing energy absorption and dispersion of strike | 採用 |
| EBD | Standard |
| Anti theft device | Standard |
| Additional equipment | No |
| Air conditioner | Full Auto |
| Power window | Standard |
| Central switch | Standard |
| Steering column length | It is not |
| Steering column height | Standard |
| Cruise control | It is not |
| Finishing leather steering wheel | Standard |
| Leather seats |
| Power front seat | It is not |
| Power rear seat | It is not |
| Wood panel | It is not |
| Sunroof | It is not |
| Sunroof | 17 inches standard |
| Folding seat | It is not |
| Glass with a UV filter | Standard |
| Toned glasses | Option |
| CVT | |
| 1 | 3.636 |
| 2 | 2.375 |
| 3 | 1.761 |
| 4 | 1.346 |
| 5 | 1.062 |
| 6 | 0.842 |
| 7 | |
| Reverse | |
| Main drive | 3.545 |