🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Model Variant: STI Year: 2008 Generation Generation Code: Third Generation (GE/GH/GR/GV) Codes Chassis Code: GR (Hatchback) 👋 Introduction Market Position Segment: Compact Performance Sedan/Hatchback Key Selling Points: All-wheel drive, turbocharged performance, rally-inspired heritage, driver engagement. Competitive Analysis Competitors 2008: • Mitsubishi Lancer Evolution • Mazdaspeed3 • Volkswagen GTI • Ford Focus ST Key Features Vehicle Type: Sport Compact Sedan/Hatchback Drivetrain: Subaru Symmetrical All-Wheel Drive Manual Advantage: Provides factory-level accuracy for repairs and maintenance, saving costs compared to dealership labor. 📋 Manual Details Coverage Areas Main Coverage: All repair and service procedures for the 2008 Subaru Impreza WRX and STI Specific Systems: • Engine Mechanical • Engine Fuel System • Engine Lubrication System • Engine Cooling System • Engine Ignition System • Engine Exhaust System • Engine Emission Control System • Drivetrain (Manual Transmission, AWD System) • Clutch System • Brake System (Hydraulic, ABS) • Steering System • Suspension System (Front and Rear) • Wheels and Tires • Body Exterior • Body Interior • Body Repair • HVAC System • Electrical System (Wiring Diagrams) • Lighting System • Audio System • Security System • Body Control Modules • Driver Information System Page Count Estimated Page Count: Likely over 1500 pages (typical for full factory service manuals) Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: PDF/ZIP 📖 Manual Coverage Systems Covered Engine: Detailed coverage of the EJ255 (WRX) and EJ257 (STI) turbocharged boxer engines, including timing belt/chain replacement, piston and ring installation, cylinder head gasket replacement, turbocharger servicing, and fuel injection system diagnostics. Transmission: Comprehensive coverage of the Subaru Symmetrical All-Wheel Drive system, including manual transmission disassembly, inspection, and reassembly. Details on the DCCD (Driver Controlled Center Differential) system found in STI models. Chassis And Suspension: In-depth procedures for front and rear suspension component replacement, alignment specifications, steering system service, and brake system overhaul (including ABS and Brembo systems on STI). Body And Interior: Includes body panel repair, door mechanism servicing, interior trim removal and installation, glass replacement, and HVAC system troubleshooting. Electrical And Wiring: Extensive wiring diagrams for all vehicle systems, including engine management, lighting, audio, security, and powertrain control. Troubleshooting guides for electrical gremlins. Procedures Included Maintenance: Routine maintenance tasks such as oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, and brake pad replacement. Diagnostics: Diagnostic trouble codes (DTCs) with explanations, symptom-based troubleshooting flowcharts, and specific diagnostic procedures for various vehicle systems. Repair And Rebuild: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly for major vehicle systems. Includes engine rebuild procedures, transmission overhaul, and suspension component replacement. Body Repair: Guidance on bodywork, including panel replacement, dent repair, welding specifications, and paint preparation. Technical Depth Depth: Comprehensive, covering everything from basic fluid checks to complete engine and transmission rebuilds. Suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format Compatibility: WIN/MAC/LINUX Extraction Requirement: Requires unzipping software (e.g., WinRAR). Print Quality Quality Description: Digital format, allowing for high-resolution viewing and printing of individual pages or sections. Quality is dependent on the original scanned document. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Wrx Engine Code: EJ255 Engine Type: 2.5L DOHC 16-valve turbocharged flat-four (Boxer) Horsepower Wrx: 224 hp @ 5200 rpm Torque Wrx: 226 lb-ft @ 2800 rpm Primary Engine Sti Engine Code: EJ257 Engine Type: 2.5L DOHC 16-valve turbocharged flat-four (Boxer) with intercooler Horsepower Sti: 305 hp @ 6000 rpm Torque Sti: 290 lb-ft @ 4000 rpm Fuel System Induction: Sequential multi-port fuel injection with electronic throttle control Fuel Type: Premium Unleaded (91 octane or higher recommended) Engine Maintenance Timing Belt Replacement Interval: 105,000 miles or 105 months (check specific engine variant and manual for exact interval) Spark Plug Type: Iridium type (e.g., NGK SILFR6A) 🔧 Transmission Standard Transmission Type: 6-speed manual Features: Subaru Symmetrical All-Wheel Drive with viscous coupling center differential (STI models feature DCCD - Driver Controlled Center Differential). Optional Transmission Type: None (Manual transmission was standard on WRX and STI for this generation) Fluid Specifications Manual Transmission Fluid Type: GL-5 Gear Oil (refer to manual for specific viscosity, e.g., 75W-90) 📐 Dimensions Exterior Body Styles: • 4-door Sedan • 5-door Hatchback Wheelbase: 103.0 inches (2616 mm) Length Sedan: 179.7 inches (4564 mm) Length Hatchback: 173.8 inches (4415 mm) Width: 69.1 inches (1755 mm) Height Sedan: 57.9 inches (1471 mm) Height Hatchback: 58.1 inches (1476 mm) Weights Curb Weight Wrx Sedan: approx. 3100-3200 lbs (1406-1451 kg) Curb Weight Sti Hatchback: approx. 3350-3450 lbs (1519-1565 kg) Wheels And Tires Wheel Bolt Pattern: 5x114.3 mm Stock Tire Size Wrx: 225/45R17 Stock Tire Size Sti: 245/40R18 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star NHTSA Side Impact: 5-Star IIHS Frontal Offset: Good IIHS Side Impact: Good Active Features Traction...