The Subaru Impreza WRX STi 2.0, produced from 2002 to 2005, represents a significant evolution of the iconic rally-bred Impreza. This facelifted version of the second-generation Impreza (often referred to as the “blobeye” due to its distinctive headlights) solidified the STi’s reputation as a formidable performance car, particularly within the burgeoning sport compact scene. Positioned as the top-tier performance variant of the Impreza lineup, the WRX STi offered a substantial upgrade over the standard WRX models, focusing on enhanced power, handling, and braking capabilities. It was primarily marketed towards driving enthusiasts seeking a capable and engaging all-wheel-drive performance sedan.
Technical Specifications
| Brand | Subaru |
| Model | Impreza |
| Generation | Impreza II (facelift 2002) |
| Type (Engine) | WRX STi 2.0 (265 Hp) AWD |
| Start of production | 2002 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 15.5 l/100 km (15.2 US mpg, 18.2 UK mpg, 6.5 km/l) |
| Fuel consumption (extra urban) | 8.5 l/100 km (27.7 US mpg, 33.2 UK mpg, 11.8 km/l) |
| Fuel consumption (combined) | 11.1 l/100 km (21.2 US mpg, 25.4 UK mpg, 9 km/l) |
| CO2 emissions | 265 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.5 sec |
| Acceleration 0 – 62 mph | 5.5 sec |
| Acceleration 0 – 60 mph | 5.2 sec |
| Maximum speed | 244 km/h (151.61 mph) |
| Emission standard | Euro 3 |
| Weight-to-power ratio | 5.5 kg/Hp, 180.3 Hp/tonne |
| Weight-to-torque ratio | 4.3 kg/Nm, 233.3 Nm/tonne |
| Power | 265 Hp @ 6000 rpm |
| Power per litre | 132.9 Hp/l |
| Torque | 343 Nm @ 4000 rpm (252.98 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | EJ207 |
| Engine displacement | 1994 cm3 (121.68 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Boxer |
| Cylinder Bore | 92 mm (3.62 in.) |
| Piston Stroke | 75 mm (2.95 in.) |
| Compression ratio | 8:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 4.5 l (4.76 US qt | 3.96 UK qt) |
| Coolant capacity | 7.7 l (8.14 US qt | 6.78 UK qt) |
| Kerb Weight | 1470 kg (3240.8 lbs.) |
| Max. weight | 1880 kg (4144.69 lbs.) |
| Max load | 410 kg (903.9 lbs.) |
| Trunk (boot) space (minimum) | 395 l (13.95 cu. ft.) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Max. roof load | 80 kg (176.37 lbs.) |
| Permitted trailer load (with brakes) | 1200 kg (2645.55 lbs.) |
| Permitted trailer load (without brakes) | 500 kg (1102.31 lbs.) |
| Length | 4415 mm (173.82 in.) |
| Width | 1740 mm (68.5 in.) |
| Height | 1440 mm (56.69 in.) |
| Wheelbase | 2525 mm (99.41 in.) |
| Front track | 1485 mm (58.46 in.) |
| Rear track | 1475 mm (58.07 in.) |
| Ride height (ground clearance) | 155 mm (6.1 in.) |
| Drivetrain | All wheel drive (4×4) |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front suspension | Spring Strut, Transverse stabilizer |
| Rear suspension | Spring Strut, Transverse stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 225/45 R17 |
| Wheel rims size | 7.5J x 17 |
INTRODUCTION
The 2002-2005 Subaru Impreza WRX STi 2.0 AWD represents a high-water mark for the Impreza’s rally heritage translated into a street-legal performance machine. Built upon the 1HX0/A3 platform, this iteration of the STi was specifically engineered to deliver exhilarating performance and precise handling. The “blobeye” facelift brought revised styling cues, including the distinctive headlights, and further refinements to the already capable chassis and powertrain. This model was never officially sold in the United States during its production run, making it a sought-after import for enthusiasts.
Powertrain & Engine Architecture
At the heart of the WRX STi lies the EJ207, a 2.0-liter turbocharged boxer-four engine. This engine is a significant departure from the North American market Impreza engines, featuring a closed-deck block for increased strength, forged pistons, and a higher-flowing cylinder head. The EJ207 utilizes multi-port fuel injection and a robust IHI turbocharger with an intercooler to deliver 265 horsepower at 6000 rpm and 343 Nm (252.98 lb-ft) of torque at 4000 rpm. The engine’s longitudinal layout and symmetrical all-wheel-drive system contribute to its balanced handling characteristics. The STi exclusively came with a six-speed manual transmission, renowned for its precise shifts and robust construction. This transmission features different gear ratios compared to the standard WRX, optimized for performance driving.
Driving Characteristics
The driving experience in the 2002-2005 Impreza WRX STi is characterized by its responsiveness and engaging dynamics. The turbocharged engine provides a noticeable surge of power, delivering strong acceleration. The six-speed manual transmission allows for precise control and encourages spirited driving. The symmetrical all-wheel-drive system provides exceptional grip, inspiring confidence in various driving conditions. Compared to the standard WRX, the STi offers a more direct steering feel and a firmer suspension setup, resulting in reduced body roll and improved cornering ability. While the STi’s suspension is firm, it remains compliant enough for everyday driving, although it prioritizes performance over comfort.
Equipment & Trim Levels
The WRX STi was typically well-equipped, although the focus remained on performance rather than luxury. Standard features included sport seats with supportive bolstering, a leather-wrapped steering wheel, and a comprehensive gauge package displaying boost pressure, oil temperature, and voltage. Interior trim was functional and driver-focused, with aluminum pedals and a unique STi badging. Optional extras included a sunroof, upgraded audio systems, and various cosmetic enhancements. The STi’s interior was distinctly different from the standard Impreza, reflecting its performance-oriented nature.
Chassis & Braking
The Impreza WRX STi featured a reinforced chassis and a sophisticated suspension system designed to maximize handling performance. The suspension utilized inverted MacPherson struts at the front and double-wishbone struts at the rear, along with transverse stabilizers to reduce body roll. Braking performance was significantly enhanced with ventilated disc brakes on all four wheels, providing ample stopping power. The STi also benefited from an upgraded braking master cylinder and brake booster. The chassis and suspension were tuned to work in harmony with the all-wheel-drive system, delivering a balanced and predictable driving experience.
Market Reception & Comparison
The Subaru Impreza WRX STi was widely praised by automotive critics for its exceptional performance and handling. It was often compared favorably to other sport compact cars, such as the Mitsubishi Lancer Evolution. While the STi offered superior handling and all-wheel-drive grip, it was sometimes criticized for its firm ride and relatively basic interior. Compared to the standard WRX, the STi represented a substantial upgrade in terms of performance and handling, but it also came with a higher price tag. Fuel economy was also a consideration, with the STi consuming significantly more fuel than the standard Impreza models.
Legacy
The 2002-2005 Subaru Impreza WRX STi 2.0 has become a highly sought-after vehicle among enthusiasts. Its robust engine, capable chassis, and iconic rally heritage have cemented its place in automotive history. The EJ207 engine, while requiring diligent maintenance, is known for its durability and potential for modification. Today, well-maintained examples command premium prices in the used car market. The STi’s legacy continues to inspire Subaru’s performance models, and it remains a benchmark for all-wheel-drive performance cars.
