Positioning:
        
        
            Performance-oriented compact sedan, rallying heritage, enthusiast vehicle
        
     
    
    
        
            Competitors:
        
        
            Mitsubishi Lancer Evolution (though distinct generations overlap), Honda Civic Si, Volkswagen Golf GTI
        
     
    
    
        
            Drivetrain:
        
        
            Subaru's signature Symmetrical All-Wheel Drive system
        
     
    
        
            Engine:
        
        
            Turbocharged Boxer engine providing a low center of gravity and unique performance characteristics
        
     
    
        
            Handling:
        
        
            Renowned for its sharp handling and rally-bred agility
        
     
 
    
    
    
        
            Powertrain:
        
        
            Engine (EJ20 Series Turbocharged Boxer), Transmission (Manual and Automatic), Drivetrain (Symmetrical All-Wheel Drive System)
        
     
    
        
            Chassis:
        
        
            Suspension (Front MacPherson strut, Rear Multi-link), Steering (Power Assisted Rack and Pinion), Brakes (Front Ventilated Discs, Rear Solid Discs, ABS)
        
     
    
        
            Electrical:
        
        
            Wiring Diagrams, Lighting, Ignition System, Starting and Charging System, Body Electronics, ECUs, Sensors
        
     
    
        
            Body:
        
        
            Exterior Body Panels, Interior Trim, HVAC, Safety Restraints (Airbags), Glass and Seals
        
     
    
    
        
            Maintenance:
        
        
            Scheduled Maintenance (Oil Changes, Filter Replacements, Tune-ups), Fluid Level Checks and Replacements
        
     
    
        
            Repair:
        
        
            Engine Rebuilding (Top-end, Bottom-end), Transmission Overhaul, Suspension Component Replacement, Brake System Repairs, Electrical Component Diagnosis and Replacement
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic Procedures, Symptom-based Troubleshooting Guides, Fault Code Interpretation
        
     
    
        
            Diagnostics:
        
        
            OBD-II Scan Procedures, Sensor Testing, Actuator Testing
        
     
    
    
        
            Depth:
        
        
            Comprehensive (from basic fluid services to complete engine and transmission overhauls, including diagnostic procedures and wiring diagrams)
        
     
 
    
    
    
        
            Engine Code:
        
        
            EJ205 (Common for the 2.0L Turbocharged Boxer in many markets for this period, though variations existed)
        
     
    
        
            Engine Type:
        
        
            Horizontally-opposed (Boxer) 4-cylinder, turbocharged, intercooled
        
     
    
        
            Displacement:
        
        
            1994 cc (2.0 Liters)
        
     
    
    
        
            Horsepower:
        
        
            Approximately 215-227 hp (depending on market and specific tune)
        
     
    
        
            Torque:
        
        
            Approximately 200-215 lb-ft (depending on market and specific tune)
        
     
    
    
        
            Induction:
        
        
            Electronic Fuel Injection (EFI) with Multi-Point Injection (MPI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, Premium (91 octane or higher recommended)
        
     
    
    
        
            ECU Type:
        
        
            Subaru Engine Control Unit (ECU), often programmable for tuning
        
     
 
    
    
    
        
            Type:
        
        
            5-speed Manual Transmission (Synchro-mesh with close ratios)
        
     
    
    
        
            Type:
        
        
            4-speed Automatic Transmission (with lock-up torque converter)
        
     
    
    
        
            AWD System:
        
        
            Symmetrical All-Wheel Drive (Active Torque Split AWD for manual, Variable Torque Distribution for automatic)
        
     
    
    
        
            Manual Fluid Type:
        
        
            API GL-5, SAE 75W-90 Gear Oil (e.g., Subaru Extra-S or equivalent)
        
     
    
        
            Automatic Fluid Type:
        
        
            Subaru ATF-HP or equivalent Dexron III/Mercon compatible fluid
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 4410 mm (173.6 inches)
        
     
    
        
            Width:
        
        
            Approx. 1730 mm (68.1 inches)
        
     
    
        
            Height:
        
        
            Approx. 1430 mm (56.3 inches)
        
     
    
    
        
            Curb Weight:
        
        
            Approx. 1350-1400 kg (2976-3086 lbs), depending on trim and transmission
        
     
    
    
        
            Wheelbase:
        
        
            Approx. 2510 mm (98.8 inches)
        
     
    
    
        
            Wheel Size:
        
        
            16 or 17 inches (standard on WRX models of this era)
        
     
    
        
            Tire Size:
        
        
            Typically 205/55R16 or 215/45R17
        
     
    
 
    
    
    
        
            NHTSA Rating:
        
        
            N/A specific to this era and market; earlier GC chassis had mixed results in early crash tests.
        
     
    
    
        
            ABS:
        
        
            Standard Anti-lock Braking System (ABS)
        
     
    
        
            AWD:
        
        
            Symmetrical All-Wheel Drive for enhanced traction and stability
        
     
    
    
        
            Airbags:
        
        
            Driver and Passenger Frontal Airbags
        
     
    
        
            Seatbelts:
        
        
            Three-point Inertial Reel Seatbelts with Pretensioners
        
     
 
    
    
    
        
            Audio System:
        
        
            Factory-installed AM/FM stereo with CD player (optional) and 4 or 6 speakers.
        
     
    
        
            Display:
        
        
            Basic digital clock and radio display. No integrated navigation or color screens.
        
     
    
    
        
            Cruise Control:
        
        
            Standard cruise control
        
     
    
    
        
            Bluetooth:
        
        
            Not available from factory. Aftermarket solutions are common.
        
     
    
    
        
            Tuning Potential:
        
        
            The EJ205 ECU is highly tunable, and this model is a popular platform for performance modifications.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 3,750 miles (6,000 km) or 6 months, whichever comes first, especially under severe driving conditions. Use of high-quality synthetic oil is recommended.
        
     
    
        
            Timing Belt Replacement:
        
        
            Typically every 90,000 miles (144,000 km) or 7 years, whichever comes first. Critical due to interference engine design.
        
     
    
    
        
            Engine Oil Capacity:
        
        
            Approx. 4.5 Liters (4.8 US Quarts) with filter. Check dipstick.
        
     
    
        
            Coolant Type:
        
        
            Subaru Super Coolant (Blue) or equivalent long-life ethylene glycol-based coolant
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 3 or DOT 4 brake fluid
        
     
    
    
        
            Head Gaskets:
        
        
            While more prevalent in naturally aspirated models or later generations, some EJ20 Turbo engines can experience head gasket issues. Regular maintenance and proper engine temperature management are key.
        
     
    
        
            Turbocharger Wear:
        
        
            Turbocharger can experience wear over time, especially if maintenance intervals are skipped or if oil is not changed regularly. Oil feed line issues can also occur.
        
     
    
        
            Clutch Wear:
        
        
            Heavy use or performance driving can lead to premature clutch wear.
        
     
    
        
            Suspension Components:
        
        
            Bushings and bearings in the suspension can wear over time, leading to noise and reduced handling precision.
        
     
 
    
    
    
        
            Heritage:
        
        
            Subaru's long-standing reputation for durable, all-wheel-drive vehicles, often with a motorsport connection.
        
     
    
    
        
            Generation Context:
        
        
            The 1999-2000 models represent the latter part of the second-generation (GC8) Impreza, known for its rally success and performance tuning potential. This era bridged the gap to the significantly redesigned third-generation (GD) chassis.
        
     
    
    
        
            Manufacturing Location:
        
        
            Japan (various Subaru plants)
        
     
    
        
            Sales Context:
        
        
            Initially popular in Japan and select export markets; gained significant following among enthusiasts globally for its performance and tuning capabilities.