🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX & STI Model Generation: Third Generation (GR/GH/GE/GV/GVB) Model Year: 2013 Codes Chassis Code: GVB (STI Hatchback), GRF (WRX STI Sedan) Engine Code Wrx: EJ255 Engine Code Sti: EJ257 👋 Introduction Market Position Market Segment: Performance Compact Sedan/Hatchback, Rally-inspired Sport Compact. Competitive Analysis Competitors: Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Ford Focus ST, Honda Civic Si. Key Features Performance Focus: AWD system, turbocharged engines, performance-tuned suspension, driver-centric cockpit. Target Audience Enthusiast Base: Performance driving enthusiasts, rally sport fans, DIY mechanics specializing in performance vehicles. 📋 Manual Details Coverage Areas Coverage: Comprehensive coverage for all repair and maintenance procedures for the 2013 Subaru Impreza WRX and STI models. Page Count Page Count: Estimated 2000+ pages (typical for full factory service manuals) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (likely PDF, sometimes available as printed copy) 📖 Manual Coverage Systems Covered Engine: Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, turbocharging, emissions control (EJ255 & EJ257 variants). Transmission: Manual transmission (TY757 & TY856), clutch system, drivetrain, differentials (front, center, rear), AWD system. Brakes: Brake system hydraulics, ABS, EBD, brake pad replacement, rotor replacement, caliper service, brake bleeding. Suspension Steering: Front and rear suspension components, struts, springs, control arms, ball joints, bushings, power steering system, steering rack. Electrical: Complete vehicle electrical system, battery, charging system, starting system, lighting, body electrical, power accessories, multiplex communication system. Body: Body construction, exterior panels, doors, windows, glass, locks, interior trim, HVAC system, climate control, safety restraint systems (airbags, seatbelts). Diagnostics: Diagnostic trouble codes (DTCs), scan tool procedures, troubleshooting flowcharts, wiring diagrams. Procedures Included Maintenance: Scheduled maintenance intervals, oil change, filter replacements (oil, air, cabin, fuel), spark plug replacement, fluid checks and changes (coolant, brake, transmission, differential, power steering). Repair: Engine rebuild, turbocharger overhaul, transmission overhaul, clutch replacement, brake caliper rebuild, suspension component replacement, electrical component repair. Troubleshooting: Detailed diagnostic procedures for common and complex issues, symptom-based troubleshooting guides. Installation: Component installation and removal procedures, including engine, transmission, suspension, body panels, and electrical modules. Technical Depth Depth: Extensive technical detail covering basic repairs to complete overhauls, including torque specifications, clearance measurements, and diagnostic procedures. 📊 Manual Specifications File Format Digital Format: PDF (Searchable text, high-resolution diagrams) Print Quality Diagram Quality: High-quality, detailed diagrams and illustrations as provided by the manufacturer. Binding Type Binding: N/A (Digital Format) - If printed, typically bound for durability. Paper Type Paper Quality: N/A (Digital Format) - If printed, typically on durable, high-gloss paper. ⚙️ Engine Specifications Primary Engine Wrx Engine Type Wrx: 2.5L DOHC turbocharged flat-four (EJ255) Primary Engine Sti Engine Type Sti: 2.5L DOHC turbocharged flat-four (EJ257 with AVCS) Performance Wrx Horsepower Wrx: 265 hp @ 6000 rpm Torque Wrx: 244 lb-ft @ 4000 rpm Performance Sti Horsepower Sti: 305 hp @ 6000 rpm Torque Sti: 290 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Sequential multi-port fuel injection (SFI), Electronic Throttle Control (ETC) with Drive-by-Wire. Fuel Type Octane Rating Required: Premium Unleaded Gasoline (91 Octane or higher recommended) Cooling System Coolant Type: Subaru Super Coolant (Blue) or equivalent silicate-free, long-life coolant. 🔧 Transmission Standard Transmission Type Wrx: 5-speed manual (TY757) Transmission Type Sti: 6-speed manual (TY856) Optional Automatic Transmission: Not available for 2013 WRX/STI Features Drivetrain: Symmetrical All-Wheel Drive (AWD) with front helical limited-slip differential, DCCD (Driver Controlled Center Differential) on STI, viscous coupling center differential on WRX. Fluid Specifications Manual Transmission Fluid Type: Subaru Extra-S Gear Oil (75W-90 GL-5) or equivalent. Fluid Capacities Manual Transmission Fluid Capacity: Approx. 2.5 Liters (TY757 WRX), Approx. 3.4 Liters (TY856 STI) 📐 Dimensions Exterior Hatchback Length Hatchback: 173.8 inches (4415 mm) Exterior Sedan Length Sedan: 180.5 inches (4585 mm) Exterior Width: 70.1 inches (1780 mm) Height: 57.9 inches (1470 mm) for sedan, 58.1 inches (1475 mm) for hatchback Wheelbase Wheelbase: 103.2 inches (2620 mm) Weights Curb Weight Wrx Hatch: Approx. 3,360 lbs (1524 kg) Curb Weight Sti Sedan: Approx. 3,373 lbs (1530 kg) Gross Vehicle Weight Rating: Approx. 4,343 lbs (1970 kg) Cargo Hatchback Cargo Volume Hatchback: 19.1 cu ft (with rear seats up) Cargo Sedan Cargo Volume Sedan: 11.3 cu ft 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 5-Star (for 2013 Impreza models) IIHS Top Safety Pick: Yes (for 2013 Impreza models) Active Features Traction Control: Yes (Subaru Vehicle Dynamics Control - VDC) ABS: Yes (4-wheel Anti-lock Braking System with Electronic Brake-force Distribution - EBD) Limited Slip Differential: Helical LSD (Front), DCCD (STI Center), Helical LSD (Rear on STI) Passive Features Airbags: Driver and front passenger airbags, front side-impact airbags, side curtain airbags. Seatbelts: 3-point ELR front and rear seatbelts with pretensioners and load limiters. Child Seat Anchors: LATCH (Lower Anchors and Tethers for Children) system. 💡 Technology Features Infotainment Headunit Features: Standard AM/FM/CD/MP3 audio system, optional navigation system, Bluetooth connectivity for hands-free calling and audio...