🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Generation: G3 Codes Chassis Code: GR/GV Engine Code Primary: EJ257 👋 Introduction Market Position Segment: Performance Compact Sedan/Hatchback Target Audience: Enthusiast drivers, rally-inspired performance seekers, owners requiring in-depth technical information for maintenance and modification. Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Ford Focus RS Key Features Performance Focus: Known for its turbocharged Boxer engine, Symmetrical All-Wheel Drive system, and performance-oriented chassis tuning. Manual Value Proposition: Provides the complete technical documentation required to maintain, repair, and understand the complex systems of the GR/GV WRX STI. 📋 Manual Details Coverage Areas Model Years Covered: 2012, 2013, 2014 Regions Covered: Global (specifications may vary by market) Page Count Estimated Page Count: Thousands (comprehensive factory manual) Manual Type Type: Full Service & Repair Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, lubrication, cooling, ignition, exhaust, turbocharger system, SI-Drive system, AWD system, manual transmission (six-speed), clutch system. Chassis: Suspension (front struts, rear double wishbone), steering system, brakes (ventilated discs front/rear, ABS, EBD, Brembo calipers), wheels, tires. Electrical: Battery, charging system, starting system, lighting, instrumentation, engine control module (ECM) wiring, body control module (BCM) wiring, infotainment, airbags, cruise control, security system. Body And Interior: Body construction, exterior panels, doors, windows, locks, seating, HVAC system, interior trim, safety belts. Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes (oil, coolant, brake fluid, transmission fluid, differential fluid), filter replacements, spark plug replacement, inspection points. Repair: Engine component removal and installation (e.g., turbocharger, injectors, alternator), transmission overhaul, brake caliper replacement, suspension component replacement, diagnostic procedures. Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides for engine, transmission, electrical, and chassis issues. Specifications And Diagrams: Detailed torque specifications, wiring diagrams, component location diagrams, exploded views, measurement specifications. Technical Depth Depth: Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers routine maintenance to complete engine and transmission rebuilds. 📊 Manual Specifications File Format Format: PDF Searchability: Text-searchable Print Quality Quality: High-resolution, suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Access Access: Instant Download, No Expiry ⚙️ Engine Specifications Primary Engine Type: EJ257; Horizontally Opposed (Boxer), Turbocharged, Intercooled DOHC 16-valve Performance Horsepower Est: 305 hp @ 6000 rpm (USDM) Torque Est: 290 lb-ft @ 4000 rpm (USDM) Redline: 6700 RPM Fuel System Induction: Sequential Multi-Point Fuel Injection (MPI), Twin-scroll Turbocharger, Top-mount Intercooler Fuel Type: Premium Unleaded Gasoline (91 AKI or higher recommended) Cooling System Coolant Capacity: Approx. 7.2 Liters (7.6 US Quarts) - Check manual for exact capacity. Lubrication System Oil Capacity: Approx. 4.8 Liters (5.1 US Quarts) with filter - Check manual for exact capacity. Engine Management ECU Type: Denso ECU with Subaru's Engine Control System (SECS) and SI-Drive integration. 🔧 Transmission Standard Type: Six-speed Manual Transmission (TY856) Optional Type: None for WRX STI models in this generation Features Drivetrain: Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD) Fluid Specifications Manual Transmission Fluid: Subaru Extra-S Gear Oil (or equivalent GL-5 rated 75W-90) - Check manual for exact specification and capacity. Differential Fluid Front Differential Fluid: GL-5 rated 75W-90 - Check manual for exact specification and capacity. Rear Differential Fluid: GL-5 rated 75W-90 (Hypoid Gear Oil) - Check manual for exact specification and capacity. 📐 Dimensions Exterior Length: Approx. 4,415 mm (173.8 in) - Sedan Width: Approx. 1,795 mm (70.7 in) Height: Approx. 1,475 mm (58.1 in) - Sedan Wheelbase: Approx. 2,650 mm (104.3 in) Weights Curb Weight: Approx. 1,505 kg (3,318 lbs) - Sedan Cargo Trunk Volume: Approx. 304 Liters (10.7 cu ft) - Sedan 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for 2012 model year, specific test results may vary) IIHS Top Safety Pick: Yes (for 2012 model year, specific test results may vary) Active Features Braking System: 4-wheel Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA), Brembo performance brakes. Traction Control: Vehicle Dynamics Control (VDC) system, Subaru's Active Torque Split AWD. Passive Features Airbags: Front dual-stage airbags, front side-impact airbags, side curtain airbags, driver's knee airbag. Seat Belts: 3-point height-adjustable front seat belts with pretensioners and force limiters, rear 3-point seat belts. 💡 Technology Features Infotainment Head Unit: Subaru's standard audio system with CD player, AM/FM radio, auxiliary input. Higher trims may include Bluetooth connectivity, USB ports, and navigation systems. Instrument Cluster: Multi-function display with turbo boost gauge, gear position indicator, SI-Drive mode display, and check engine light. Driver Assistance Si Drive: Subaru Intelligent Drive (SI-Drive) system allowing selection between Intelligent, Sport, and Sport Sharp modes, altering throttle response, engine mapping, and AWD behavior. Dccd: Driver Controlled Center Differential (DCCD) allows manual adjustment of front/rear torque bias for optimized traction and handling. Connectivity Bluetooth: Available on select trims for hands-free calling and audio streaming. Keyless Entry System: Keyless entry and...