🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STi Model Generation: Third Generation (GR/GV) Model Years: 2008-2011 Codes Chassis Code Hatchback: GR Chassis Code Sedan: GV 👋 Introduction Market Position Segment: Performance Compact Sedan/Hatchback Usp: Iconic rally heritage, symmetrical all-wheel drive, turbocharged boxer engine, performance tuning potential. Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Mazdaspeed3. Key Features Performance Focus: Emphasizes its performance capabilities and motorsport-derived engineering. Diy Support: Aimed at enthusiasts and DIY mechanics seeking to maintain or repair their vehicles efficiently by correctly identifying parts. 📋 Manual Details Coverage Areas Primary Coverage: Parts List / Catalog Secondary Coverage: DIY Repair Guidance (via part identification) Page Count Estimated Page Count: Varies by specific model year and trim within the range, but typically extensive for parts catalogs (e.g., 300-800+ pages). Manual Type Type: Parts Catalog / Parts List Language Language: English Format File Format: Searchable PDF 📖 Manual Coverage Systems Covered Powertrain Components: Engine assembly, cylinder head, pistons, connecting rods, crankshaft, camshafts, valves, turbocharger, intercooler, fuel system (injectors, pump, lines), exhaust system, cooling system. Drivetrain Components: Transmission (manual and automatic variants if applicable), clutch assembly, driveshafts, differentials (front, center, rear), wheel hubs, axles. Suspension Steering Components: Front and rear suspension struts, springs, control arms, bushings, anti-roll bars, steering rack, power steering pump, tie rods. Braking Components: Brake calipers (front and rear Brembo units for STi), brake discs/rotors, brake pads, brake lines, master cylinder, ABS components. Electrical Components: Alternator, starter motor, battery, ECU, wiring harnesses, sensors (engine, ABS, etc.), ignition coils, spark plugs. Body Exterior Components: Body panels (fenders, hood, doors, bumpers, spoilers), lighting (headlights, taillights), glass, mirrors, trim pieces, roof rails (if applicable). Interior Components: Seats, dashboard components, steering wheel, HVAC controls, door panels, carpets, audio system components. Procedures Included Part Identification: Identification of specific components and their corresponding OEM part numbers. Part Verification: Cross-referencing part numbers for correct application to specific model years and trims. Labor Information Reference: Inclusion of labor time estimates or information, often useful for DIYers planning repairs or for professional shops. Technical Depth Depth: Detailed component-level breakdown for parts sourcing and identification. Not a diagnostic or repair procedure manual, but essential for obtaining the correct parts for repairs. 📊 Manual Specifications File Format Searchability: Searchable text within the PDF for quick part number or component name retrieval. Linked Bookmarks: Includes linked bookmarks for easy navigation through different sections and systems. Print Quality Illustration Clarity: Clear component illustrations and diagrams for accurate part identification. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ257 Engine Type: 2.5L Turbocharged Boxer-4 Displacement: 2457 cc Bore X Stroke: 99.5 mm x 79 mm Compression Ratio: 8.4:1 Performance Horsepower: 305 hp @ 6000 rpm (approximate, may vary slightly by year/market) Torque: 290 lb-ft @ 4000 rpm (approximate, may vary slightly by year/market) Fuel System Fuel Delivery: Sequential Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Turbocharger Turbocharger Type: Twin-scroll Turbocharger (IHI VF48 or similar) 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission Optional Transmission Type: No automatic transmission offered for WRX STi during these model years. Features Drivetrain: Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD) and Active Torque Distribution. Fluid Specifications Manual Transmission Fluid: GL-5 75W-90 Synthetic gear oil. Specific Subaru or equivalent fluid recommended (e.g., Subaru Extra-S). Verify exact specification for transmission case. 📐 Dimensions Exterior Length Sedan: 179.1 inches (4550 mm) Length Hatchback: 173.8 inches (4415 mm) Width: 70.7 inches (1795 mm) Height Sedan: 57.9 inches (1470 mm) Height Hatchback: 58.1 inches (1475 mm) Wheelbase: 103.1 inches (2619 mm) Weights Curb Weight Sedan: 3373 lbs (1530 kg) Curb Weight Hatchback: 3439 lbs (1560 kg) Wheels Tires Wheel Bolt Pattern: 5x114.3 mm (5x4.5 inches) Standard Wheel Size: 18 x 8.5 inches Standard Tire Size: 245/40R18 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for applicable models/years) IIHS Side Impact: Good (for applicable models/years) Active Features ABS: Standard, performance-tuned Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD). Traction Control: Standard Subaru Vehicle Dynamics Control (VDC), including traction and stability control. Passive Features Airbags: Front dual-stage airbags, front side-impact airbags, side curtain airbags (front and rear). Seatbelts: 3-point height-adjustable front seatbelts with pre-tensioners and force limiters, rear 3-point seatbelts. Structure: Reinforced body structure with front and rear crumple zones. 💡 Technology Features Infotainment Head Unit: Standard factory audio system with CD player, AM/FM radio, auxiliary input. Optional navigation systems available on higher trims/later years. Speaker System: Typically 6-speaker or 10-speaker premium audio system (e.g., with subwoofer) depending on trim level. Driver Assistance Cruise Control: Standard cruise control. Keyless Entry: Standard keyless entry system. Connectivity Bluetooth: Limited Bluetooth connectivity often integrated into head unit or available as an option, depending on trim and year. 🔧 Maintenance...