Positioning:
Iconic performance sedan, rally homologation special
Target Demographic:
Performance car enthusiasts, rally fans, individuals seeking a highly capable AWD sports sedan
Competitors:
Mitsubishi Lancer Evolution, Ford Focus RS, Audi S3, BMW 3 Series (performance variants)
Performance Focus:
Emphasis on turbocharged power, advanced AWD system, and driver engagement
Rally Heritage:
Direct lineage from World Rally Championship (WRC) success
Engine:
EJ207 (2.0L Turbocharged Boxer)
Fuel System:
Multi-point Fuel Injection, Turbocharger System, Intercooler
Engine Management:
ECU diagnostics, sensors, actuators, emissions control
Transmission:
6-Speed Manual (TY856)
Drivetrain:
Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD)
Suspension:
Front MacPherson Struts, Rear Multi-link Independent, STI specific tuning
Brakes:
Front and Rear Disc Brakes, ABS, STI specific caliper upgrades (e.g., Brembo on some models)
Electrical:
Complete wiring diagrams, lighting, charging system, starting system, ECU harness
Body And Chassis:
Frame, body panels, interior trim, doors, windows, bumpers, aerodynamics
HVAC:
Heating, Ventilation, Air Conditioning system
Interior:
Seats, dashboard, instrumentation, airbags
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks
Repair:
Engine rebuild, transmission overhaul, brake component replacement, suspension repair, electrical component diagnosis and repair
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), on-board diagnostics (OBD-II)
Installation:
Component replacement procedures, alignment procedures
Specifications:
Torque specifications, clearances, fluid capacities, electrical resistance values
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds
Diagnostic Level:
Advanced, including ECU data interpretation and wiring troubleshooting
Displacement:
2.0 Liters (1994cc)
Configuration:
Horizontally Opposed (Boxer) 4-Cylinder
Aspiration:
Twin-Scroll Turbocharged (VF30 or similar)
Valvetrain:
DOHC, 16 Valves, Hydraulic Valve Adjusters
Bore X Stroke:
92.0 mm x 75.0 mm
Horsepower:
Approx. 280 PS (276 hp) at 6,000 rpm (JDM spec)
Torque:
Approx. 350 Nm (258 lb-ft) at 4,000 rpm (JDM spec)
Fuel Type:
Unleaded Gasoline (High Octane Recommended, 98 RON/93+ AKI)
Injection System:
Electronic Multi-Point Fuel Injection (EFI)
Ignition System:
Electronic Ignition, Coil-on-Plug
Engine Oil Type:
API SG or SH, SAE 10W-30 or 10W-40 (check manual for precise recommendations)
Coolant Type:
Subaru Super Coolant (Blue) or equivalent ethylene glycol-based antifreeze
Type:
6-Speed Manual Transmission
Type:
N/A for WRX STI models of this era
Drivetrain Coupling:
Symmetrical All-Wheel Drive (AWD)
Center Differential:
Driver Controlled Center Differential (DCCD)
Differential Types:
Front Helical Limited Slip Differential (LSD), Rear Mechanical Limited Slip Differential (LSD)
Transmission Oil Type:
GL-5 Gear Oil, SAE 75W-90 (check manual for specific Subaru recommendations)
Transfer Case Oil Type:
GL-5 Gear Oil, SAE 75W-90
Length:
Approx. 4,405 mm (173.4 inches)
Width:
Approx. 1,770 mm (69.7 inches)
Height:
Approx. 1,410 mm (55.5 inches)
Wheelbase:
Approx. 2,515 mm (99.0 inches)
Curb Weight:
Approx. 1,400 - 1,450 kg (3,086 - 3,197 lbs)
Gross Vehicle Weight Rating:
To be specified in manual
Towing Capacity:
Not recommended
NHTSA Front Crash Test:
4-star (for 2001-2002 models)
IIHS Frontal Offset:
Good (for similar Subaru models of the era)
ABS:
Standard Anti-lock Braking System
Traction Control:
Standard Traction Control System (TCS)
AWD:
Symmetrical All-Wheel Drive (AWD) for enhanced stability and grip
Airbags:
Driver and front passenger airbags
Seatbelts:
3-point front and rear seatbelts
Rollover Protection:
Reinforced chassis structure
Oil Change Interval:
Every 3,000-5,000 miles or 6 months (severe duty recommended for performance driving)
Air Filter Replacement:
Every 15,000-30,000 miles or as needed based on inspection
Spark Plug Replacement:
Every 30,000-60,000 miles (Iridium type)
Timing Belt Replacement:
Every 60,000-100,000 miles or 7 years (crucial for EJ207 engine)
Brake Fluid Type:
DOT 3 or DOT 4 (check manual for specific recommendations, high-temp performance fluid recommended for spirited driving)
Power Steering Fluid Type:
Subaru specified power steering fluid or ATF Dexron III (check manual)
Coolant Capacity:
Approx. 7.0 Liters (7.4 US Quarts)
Engine Wear:
Piston ring land failure at high power levels, valve seal wear
Turbocharger:
Oil starvation leading to turbo failure, potential wastegate issues
Transmission:
Synchro wear on 2nd and 3rd gear, potential clutch issues under aggressive use
Suspension:
Bushing wear, shock absorber degradation
Heritage:
Subaru's long-standing association with rallying and performance vehicles
Previous Generation:
First Generation Subaru Impreza WRX STI (GC/GF/GM chassis)
Subsequent Generation:
Third Generation Subaru Impreza WRX STI (GR/GV chassis)
Manufacturing Location:
Japan
Key Developments:
Introduction of the EJ207 engine, 6-speed transmission, DCCD, and chassis stiffening over previous models
