🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX / WRX STI Production Model Year: 2013 Codes Chassis Codes: V10 (WRX), V10 (WRX STI) Engine Codes: EJ255 (WRX), EJ257 (WRX STI) 👋 Introduction Market Position Segment: Performance Compact Sedan/Hatchback Usp: Symmetrical All-Wheel Drive, turbocharged boxer engine, rally-bred performance heritage. Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Volkswagen GTI/R, Ford Focus ST/RS, Honda Civic Si. Key Features Performance Focus: Designed for enthusiasts seeking enhanced performance, handling, and driver engagement. AWD Capability: Subaru's signature Symmetrical All-Wheel Drive system provides exceptional traction and stability in various conditions. 📋 Manual Details Coverage Areas Supported Models: All 2013 Subaru Impreza WRX & WRX STI variants Supported Engines: 2.5L Turbocharged EJ255 (WRX), 2.5L Turbocharged EJ257 (WRX STI) Page Count Estimated Pages: Comprehensive (specific count not provided, typical for full service manuals exceeds 1500 pages) Manual Type Type: Complete Service & Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, engine management, fuel system, ignition system, exhaust system, transmission (manual and automatic), clutch, drivetrain, differentials, AWD system Chassis: Suspension (front and rear), steering system, brake system (hydraulic, ABS, EBD), wheels and tires Body And Electrical: Body panels, interior trim, HVAC system, lighting system, instrument cluster, power windows, power locks, infotainment system, audio system, airbags, safety systems, wiring diagrams, fuse/relay information Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection/replacement Diagnostics And Troubleshooting: On-board diagnostics (OBD-II), fault code interpretation, symptom-based troubleshooting, diagnostic procedures for all major systems Repair And Rebuild: Engine disassembly and reassembly, transmission overhaul, brake caliper rebuild, suspension component replacement, body panel repair, electrical component replacement Special Procedures: Turbocharger diagnostics and replacement, AWD system service, differential service, airbag system precautions and replacement, ECU remapping/tuning considerations Technical Depth Depth: Expert Level: Covers everything from routine maintenance to complete engine and transmission rebuilds, including detailed diagnostic flowcharts, torque specifications, and component tolerances. 📊 Manual Specifications File Format PDF Quality: High Resolution, Searchable Text, Printable Pages Print Quality Printability: Designed for high-quality printing, allowing users to print specific sections or the entire manual. Binding Type Binding: N/A (Digital PDF Format) Paper Type Paper Recommendation: N/A (Digital PDF Format) ⚙️ Engine Specifications Primary Engine Wrx Engine Type: 2.5L (2457cc) DOHC Turbocharged Boxer-4 (EJ255) Wrx Sti Engine Type: 2.5L (2457cc) DOHC Turbocharged Boxer-4 (EJ257) with intercooler and twin-scroll turbocharger Performance Wrx Horsepower: 265 hp @ 6000 rpm Wrx Torque: 244 lb-ft @ 2000 rpm Wrx Sti Horsepower: 305 hp @ 6000 rpm Wrx Sti Torque: 290 lb-ft @ 4000 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Fuel Delivery: Multi-point Sequential Electronic Fuel Injection (MPI) Engine Management ECU Type: Denso ECU (specific part numbers available in manual) 🔧 Transmission Standard Wrx Transmission: 6-speed Manual Transmission Wrx Sti Transmission: 6-speed Manual Transmission (STi-specific design) Optional Optional Transmission: None for 2013 WRX/STI models. Features AWD System: Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) on STI models, Viscous Center Coupling on WRX models. Fluid Specifications Manual Transmission Fluid: Subaru Extra S API GL-5 75W-90 Gear Oil (refer to manual for exact part numbers and alternatives) 📐 Dimensions Exterior Wheelbase: 103.2 inches (2620 mm) Length: 179.5 inches (4560 mm) Width: 70.7 inches (1795 mm) Height: 57.9 inches (1470 mm) Weights Curb Weight Wrx: Approx. 3330 lbs (1510 kg) Curb Weight Wrx Sti: Approx. 3415 lbs (1549 kg) Cargo Trunk Volume: 11.3 cu ft (Sedan) Wheels And Tires Wrx Wheel Size: 17 x 8.0 inches Wrx Tire Size: 235/45R17 Wrx Sti Wheel Size: 18 x 8.5 inches Wrx Sti Tire Size: 245/40R18 Bolt Pattern: 5x114.3 mm 🛡️ Safety Features Ratings NHTSA Overall Rating: 4 Stars (typical for this era, consult specific test data) Active Features Braking System: 4-wheel power disc brakes with ABS, EBD, Brake Assist Stability Control: Vehicle Dynamics Control (VDC) Passive Features Airbags: Front driver and passenger airbags, front side-impact airbags, front and rear side-curtain airbags Seatbelts: 3-point height-adjustable front seatbelts with pretensioners and force limiters, rear 3-point seatbelts Child Seat Anchors: LATCH (Lower Anchors and Tethers for CHildren) system 💡 Technology Features Infotainment Audio System: Available AM/FM/CD/MP3 stereo with auxiliary input, Bluetooth connectivity, and touchscreen display on higher trims. Navigation System: Optional factory-installed GPS navigation system. Driver Assistance Cruise Control: Standard electronic cruise control. Connectivity Bluetooth: Available Bluetooth hands-free phone and audio streaming. Lighting Headlights: Halogen projector headlights with available HID (High-Intensity Discharge) on some trims. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 6 months (severe conditions) / 7,500 miles or 12 months (normal conditions). Refer to manual for precise Subaru recommendations. Engine Air Filter: Inspect every 15,000 miles, replace as needed. Cabin Air Filter: Replace every 15,000 miles or 12 months. Spark Plugs: Replace at 30,000 miles (NGK iridium specified). Coolant Replacement: First change at...