🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Year: 2007 Chassis Code: GDB-F Production Generation: Third Generation (GD/GG) Codes Engine Code: EJ257 👋 Introduction Market Position Market Segment: Performance Compact Sedan/Hatchback Competitive Set: Mitsubishi Lancer Evolution, Subaru Impreza WRX (non-STI variants), Mitsubishi Eclipse GT, Mazda Mazdaspeed3. Competitive Analysis Usp: World Rally Championship (WRC) heritage, Symmetrical All-Wheel Drive, potent turbocharged Boxer engine, driver-focused dynamics. Key Features Performance Focus: Emphasis on handling, acceleration, and driver engagement. All Wheel Drive: Standard Symmetrical All-Wheel Drive system providing exceptional traction and stability. Engine Technology: Turbocharged Boxer engine with intercooler and advanced engine management. 📋 Manual Details Coverage Areas Manual Type: Complete Official Service & Repair Manual Language: English Format: PDF Content Scope: All models and all engines for 2007 Impreza WRX STI Page Count Estimated Page Count: Over 2000 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, and overhaul of the EJ257 turbocharged Boxer engine, including fuel injection, ignition, lubrication, cooling, and emissions systems. Transmission: Comprehensive coverage of the 6-speed manual transmission (TY856WR) and its associated clutch system, including repair procedures and fluid specifications. Drivetrain: Detailed information on the Subaru Symmetrical All-Wheel Drive system, including front and rear differentials, driveshafts, and viscous coupling unit (VCU) maintenance and repair. Suspension: Front and rear suspension systems, including struts, springs, control arms, sway bars, and alignment specifications. Brakes: Front Brembo 4-piston calipers and rear Brembo 2-piston calipers, ABS system, brake fluid specifications, and repair procedures. Steering: Power steering system, steering column, and wheel assembly. Electrical System: Complete wiring diagrams, component locations, fuse box layouts, battery, alternator, starter, lighting, and accessory systems. Body And Chassis: Body panel removal and installation, interior trim, chassis components, and structural information. HVAC: Heating, ventilation, and air conditioning (HVAC) system diagnostics and repair. Comfort And Convenience: Power windows, locks, mirrors, seats, and other interior amenities. Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tire rotations, spark plug replacement, and belt inspections. Troubleshooting: Diagnostic flowcharts and procedures for common and uncommon issues across all vehicle systems. Repair Procedures: Step-by-step guides for engine rebuilds, transmission overhauls, brake component replacement, suspension work, electrical component repair, and bodywork. Specifications And Data: Torque specifications, clearances, diagnostic trouble codes (DTCs), wiring diagrams, and component testing procedures. Component Replacement: Detailed instructions for replacing major components such as the turbocharger, intercooler, fuel injectors, catalytic converter, and more. Technical Depth Depth: Comprehensive, from basic maintenance to complete engine and transmission rebuilds. Suitable for DIY enthusiasts and professional technicians. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Searchability: Fully searchable text for quick information retrieval. Print Quality: High-resolution, suitable for printing individual pages or sections. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 2.5L Turbocharged DOHC 16-valve Boxer 4-cylinder Engine Code: EJ257 Performance Horsepower Hp: 305 hp @ 5600 rpm Torque Lb-Ft: 290 lb-ft @ 3500 rpm Redline: 7000 rpm Fuel System Fuel Type: Unleaded premium gasoline (91 octane or higher recommended) Fuel Delivery: Sequential multi-port fuel injection (MPI) Turbocharger: IHI VF39 (or similar variant), air-to-air intercooler Engine Build Block Material: Aluminum Cylinder Head Material: Aluminum Bore X Stroke: 99.5 mm x 79.0 mm Compression Ratio: 8.2:1 🔧 Transmission Standard Type: 6-speed Manual Model Code: TY856WR Features Drivetrain Layout: Subaru Symmetrical All-Wheel Drive with Front Helical LSD, Rear Viscous LSD Fluid Specifications Manual Transmission Fluid: Subaru Extra-S Gear Oil (or equivalent API GL-5, SAE 75W-90) 📐 Dimensions Exterior Length: 173.8 inches (4415 mm) Width: 69.1 inches (1755 mm) Height: 57.7 inches (1465 mm) Wheelbase: 103.0 inches (2615 mm) Front Track: 59.3 inches (1505 mm) Rear Track: 59.1 inches (1500 mm) Weights Curb Weight: Approximately 3241 lbs (1470 kg) Gross Vehicle Weight Rating: 4598 lbs (2085 kg) Towing Capacity: Not Recommended Cargo Trunk Volume: Approximately 11.4 cu ft (Sedan) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star NHTSA Side Impact: 5-Star IIHS Front Offset: Good IIHS Side Impact: Good Active Features ABS: 4-wheel ABS with Electronic Brake-force Distribution (EBD) Traction Control: Yes (Vehicle Dynamics Control - VDC) Stability Control: Yes (Vehicle Dynamics Control - VDC) Passive Features Airbags: Driver and front passenger airbags, front side-impact airbags, front and rear side-curtain airbags. Seatbelts: 3-point front and rear seatbelts with pretensioners and force limiters. Child Seat Anchors: LATCH (Lower Anchors and Tethers for Children) system. 💡 Technology Features Infotainment Head Unit: Stock Subaru head unit with CD player, radio, and basic audio controls. Optional navigation systems may be available. Audio System: Typically a 6-speaker or 10-speaker system with subwoofer, depending on trim. Bose premium audio available. Driver Assistance Traction Control: Vehicle Dynamics Control (VDC) system, which integrates ABS, traction control, and stability control. All Wheel Drive: Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) allowing manual adjustment of front-to-rear torque split. Connectivity Auxiliary Input: Standard...