🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2005 Trim Levels Covered: WRX, STI, RS Chassis Code: GDB (all variants for 2005 model year) Codes Engine Codes Primary: EJ205 (WRX), EJ257 (STI) Engine Codes Secondary: EJ253 (RS - naturally aspirated) 👋 Introduction Market Position Market Position: The 2005 Subaru Impreza WRX STI and RS represented Subaru's commitment to the performance compact car segment, offering rally-bred technology and everyday usability. The STI variant was a homologation special for WRC, while the WRX provided a more accessible turbocharged experience. The RS offered a naturally aspirated option with a sporty aesthetic. Competitive Analysis Competitive Analysis: Competed against vehicles like the Mitsubishi Lancer Evolution, Volkswagen GTI, and Honda Civic Si. The Impreza distinguished itself with its standard all-wheel-drive system and boxer engine layout. Key Features Key Features: Symmetrical All-Wheel Drive, turbocharged boxer engines (EJ205/EJ257), performance-oriented suspension, driver-focused cockpit, iconic styling, and rally heritage. 📋 Manual Details Coverage Coverage Areas: General Information, Engine (STI, WRX, RS), Automatic Transmission, Manual Transmission, Chassis, Drive Shaft System, ABS, Brake System, Power Steering, Clutch System, Wheel & Tire, Body, Front & Rear Suspension, Heating & Airconditioning, Entertainment System, Communication System, Security & Locks, Cruise Control, Wiring System, Mechanism & Function Page Count Page Count: 1000+ Manual Type Manual Type: Workshop Service/Repair Manual Language Language: English Format Format: ZIP/PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine mechanical and electrical systems (including turbocharger specifics for WRX/STI), transmission (manual and automatic), drivetrain, braking system (including ABS), steering, suspension, fuel system, cooling system, exhaust system, HVAC, body and interior, electrical and electronic systems, security and alarm, infotainment and entertainment, and cruise control. Procedures Included Procedures Included: Complete diagnostic procedures, troubleshooting guides, disassembly and reassembly of all major components, repair and replacement procedures for all systems, maintenance schedules, fluid specifications and capacities, torque specifications, wiring diagrams, and schematics. Technical Depth Technical Depth: Comprehensive, covering basic maintenance to advanced engine and transmission overhauls, electrical diagnostics, and chassis repairs. Suitable for professional mechanics and experienced DIY enthusiasts. 📊 Manual Specifications File Format File Format: Digital (ZIP archive containing PDF files) Print Quality Print Quality: High-resolution, suitable for printing individual pages or the entire manual. Binding Type Binding Type: Not applicable (digital product), but designed for printable pages. Paper Type Paper Type: Not applicable (digital product), but designed to be printed on standard paper. ⚙️ Engine Specifications Primary Engine Primary Engine: 2.0L turbocharged flat-four (EJ205) - WRX; 2.5L turbocharged flat-four (EJ257) - STI Engine Details Wrx Engine Displacement Wrx: 1994 cc Engine Bore Stroke Wrx: 92.0 mm x 75.0 mm Horsepower Wrx: 227 hp @ 5600 rpm Torque Wrx: 217 lb-ft @ 4000 rpm Engine Details Sti Engine Displacement Sti: 2457 cc Engine Bore Stroke Sti: 99.5 mm x 80.0 mm Horsepower Sti: 300 hp @ 6000 rpm Torque Sti: 300 lb-ft @ 4000 rpm Engine Details Rs Engine Code Rs: EJ253 Engine Displacement Rs: 2457 cc Horsepower Rs: 165 hp @ 5600 rpm Torque Rs: 166 lb-ft @ 4000 rpm Performance Forced Induction Wrx Sti: Twin-scroll turbocharger (IHI VF39 on STI, TD04 on WRX) Fuel System Fuel Injection: Electronic multi-point fuel injection Engine Management ECU Type: Denso ECU (specific part numbers vary by region and spec) Engine Maintenance Spark Plug Type: NGK Iridium (e.g., PFR7B or equivalent) 🔧 Transmission Standard Transmission Standard Wrx: 5-speed manual Transmission Standard Sti: 6-speed manual Optional Transmission Optional Rs: 4-speed automatic Transmission Optional Wrx: 4-speed automatic (less common) Features Drivetrain: Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) on STI models. Maintenance Manual Transmission Fluid Spec: GL-5 (e.g., Subaru Extra-S Gear Oil or equivalent 75W-90) Automatic Transmission Fluid Spec: ATF-HP (Subaru proprietary fluid or equivalent) 📐 Dimensions Exterior Wheelbase: 2525 mm (99.4 in) Length: 4405 mm (173.4 in) Width: 1770 mm (69.7 in) Height: 1410 mm (55.5 in) (Sedan); 1435 mm (56.5 in) (Wagon) Weights Curb Weight Wrx: Approx. 1420 kg (3130 lbs) Curb Weight Sti: Approx. 1470 kg (3240 lbs) Gross Vehicle Weight Rating: Varies by model and configuration Wheels Tires Wheel Bolt Pattern: 5 x 114.3 mm (4.5 in) Wheel Size Wrx: 17 x 7.0 inches Wheel Size Sti: 17 x 7.5 inches (standard), 18 x 8.0 inches (optional/later models) Tire Size Wrx: 215/45R17 Tire Size Sti: 225/45R17 (standard), 235/40R18 (optional) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: Good (IIHS) NHTSA Front Impact Passenger: Good (IIHS) NHTSA Side Impact: Not rated or Marginal (IIHS, depending on specific year and options) Active Features Active Features: ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), AWD (All-Wheel Drive), LSD (Limited-Slip Differential - front on STI, center on STI). Passive Features Passive Features: Front airbags, front side airbags (optional), front seatbelt pretensioners, crumple zones, reinforced chassis. 💡 Technology Features Infotainment Infotainment System: Factory fitted CD player with AM/FM radio, optional premium audio systems (e.g., with subwoofer). Driver Assistance Driver...