🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX & STI Year: 2008 Codes Chassis Code: GR/GV (Hatchback/Sedan) Engine Codes Wrx: EJ255 (2.5L Turbocharged DOHC) Engine Codes Sti: EJ257 (2.5L Turbocharged DOHC with AVCS) Generation Generation Name: Third Generation (GE/GH/GR/GV) 👋 Introduction Market Position Segment: Compact Sport Sedan/Hatchback Usp: All-wheel drive performance, rally heritage, turbocharged engines Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Volkswagen GTI, Mazdaspeed3 Key Features Performance Orientation: Focus on enhanced performance and handling characteristics AWD System: Symmetrical All-Wheel Drive (SAWD) as standard, offering superior traction and stability Engine Technology: Boxer engine configuration for lower center of gravity, turbocharged intercooled engines 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Specific Models Covered: 2008 Subaru Impreza WRX, 2008 Subaru Impreza STI Page Count Estimated Page Count: 2000+ Manual Type Manual Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, assembly, disassembly, timing belt/chain, piston, rings, crankshaft, camshaft, valves, cylinder head, engine block, lubrication system, cooling system Engine Management: Fuel injection system, ignition system, emission control systems, ECU diagnosis and programming, sensors, actuators, turbocharger system, intercooler Transmission Drivetrain: Manual transmission (TY757/TY856), automatic transmission (optional, less common for WRX/STI), clutch system, all-wheel drive (AWD) system, front/rear differentials, driveshafts, CV joints Brakes: Front and rear brake systems (including Brembo on STI), ABS, EBD, brake fluid, master cylinder, calipers, rotors, brake pads, parking brake Suspension Steering: Front and rear suspension (independent), struts, springs, control arms, sway bars, steering rack, power steering system, wheel alignment specifications Electrical: Battery, charging system, starting system, lighting, power windows, power locks, wipers, horn, fuses, relays, wiring diagrams, body control module (BCM), engine control module (ECM) HVAC: Heating, ventilation, and air conditioning (HVAC) system, refrigerant, compressor, condenser, evaporator, climate control modules Body Interior: Body panels, doors, hood, trunk/hatch, bumpers, interior trim, seats, airbags, SRS system, body repair, paint codes Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, spark plug replacement, fluid checks and changes, belt inspections Troubleshooting: Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides, DTC (Diagnostic Trouble Code) interpretation Repair: Step-by-step repair instructions for all major systems, component replacement, adjustment procedures Diagnostics: On-board diagnostics (OBD-II) procedures, scan tool usage, sensor testing, actuator testing Specifications: Torque specifications for all fasteners, fluid capacities, electrical specifications, diagnostic values Technical Depth Depth Of Coverage: Comprehensive, from basic maintenance to complete engine and transmission rebuilds Diagnostic Tools Required: Includes information on required diagnostic tools, scan tools, and specialized equipment 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Searchability: Searchable text for quick information retrieval Print Quality Print Readability: High-resolution, designed for clear printing and on-screen viewing Binding Type Binding Type: N/A (Digital) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type Wrx: 2.5L DOHC 16-Valve Turbocharged EJ255 Flat-Four Engine Type Sti: 2.5L DOHC 16-Valve Turbocharged EJ257 Flat-Four with Active Valve Control System (AVCS) Performance Horsepower Wrx Approx: 224 hp @ 5200 rpm Torque Wrx Approx: 226 lb-ft @ 4400 rpm Horsepower Sti Approx: 305 hp @ 6000 rpm Torque Sti Approx: 290 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with sequential port injection Fuel Type Recommended: Premium Unleaded Gasoline (91+ Octane) Ignition System: Distributorless Electronic Ignition (Coil-on-plug) 🔧 Transmission Standard Transmission Type: 6-Speed Manual Optional Transmission Type Optional: 4-Speed Automatic (less common for WRX/STI models) Features Sti Differential Control: Driver Controlled Center Differential (DCCD) for advanced AWD tuning on STI models AWD Type: Symmetrical All-Wheel Drive (SAWD) with Viscous Coupling Center Differential (VCD) or DCCD Fluid Specifications Manual Transmission Fluid Spec: Subaru Extra Gear Oil API GL-5 75W-90 📐 Dimensions Exterior Body Styles: 5-Door Hatchback (GR), 4-Door Sedan (GV) Wheelbase In: 103.2 Length In Hatch: 173.8 Length In Sedan: 180.3 Width In: 70.1 Height In Hatch: 58.1 Height In Sedan: 58.7 Weights Curb Weight Lbs Wrx Hatch Approx: 3290 Curb Weight Lbs Sti Hatch Approx: 3375 Gross Vehicle Weight Rating Gvwr Lbs Approx: 4500 Towing Capacity Lbs: Not Recommended 🛡️ Safety Features Ratings NHTSA Front Crash Test Rating: 5-Star (for 2008 Impreza Sedan/Wagon) IIHS Front Crash Test Rating: Good (for 2008 Impreza) Active Features Traction Control: Standard (Subaru Vehicle Dynamics Control - VDC) Electronic Stability Control: Standard (Subaru Vehicle Dynamics Control - VDC) Brake Assist: Standard Passive Features Airbags Front: Dual-stage driver and front passenger airbags Airbags Side: Front side-impact airbags and side-curtain airbags (for all passengers) Seatbelts: 3-point seatbelts with pretensioners and load limiters Srs System: Supplemental Restraint System (SRS) 💡 Technology Features Infotainment Head Unit: Standard AM/FM/CD/MP3 player with auxiliary input, optional navigation system Driver Assistance AWD System: Symmetrical All-Wheel Drive (SAWD) provides advanced traction and stability Sti Driver Controls: Driver Controlled Center Differential (DCCD) on STI models for manual adjustment of front/rear torque bias Connectivity Connectivity...