Segment:
Performance Compact Sedan/Hatchback (WRX), Rally-Inspired Performance Sedan/Hatchback (WRX STI)
Target Audience:
Enthusiasts, performance drivers, Subaru WRX/STI owners seeking in-depth technical knowledge
Competitors:
Mitsubishi Lancer Evolution, Ford Focus RS, Volkswagen Golf GTI/R, Honda Civic Si (depending on trim and focus)
Vehicle Philosophy:
All-wheel drive, turbocharged performance, rally heritage, driver engagement
Manual Advantage:
Direct access to factory-level diagnostic and repair procedures, ensuring accuracy and authenticity
Market Availability:
North America (implied by dealer technician reference)
Region Specifics:
Focus on US/Canadian specifications
Estimated Pages:
High volume, typically over 2000 pages for comprehensive factory manuals
Type:
Factory Service Manual / Workshop Manual
Format:
Digital Download (likely PDF)
Powertrain:
Engine (EJ255/EJ257), Fuel System, Exhaust System, Drivetrain (Manual Transmission, AWD System), Clutch
Chassis:
Suspension (Front MacPherson Strut, Rear Double Wishbone), Steering System, Brake System (ABS, EBD), Wheels & Tires
Electrical:
Engine Control Module (ECM), Body Control Module (BCM), Lighting Systems, Instrumentation, Audio System, HVAC Controls, Power Accessories, SRS (Airbag) System, Immobilizer
Body And Trim:
Exterior Body Panels, Interior Trim, Doors, Windows, Seats, Roof (including sunroof if applicable)
Heating Ventilation And Air Conditioning:
HVAC System Operation, Refrigerant Handling, Component Diagnosis
Maintenance:
Scheduled Maintenance Intervals, Fluid Checks and Replacements, Filter Replacements, Spark Plug Replacement, Belt Inspections
Repair And Overhaul:
Engine Reassembly, Transmission Removal/Installation, Brake Caliper Overhaul, Suspension Component Replacement, HVAC Component Replacement
Diagnostics:
Troubleshooting Flowcharts, DTC (Diagnostic Trouble Code) Interpretation, Electrical Circuit Diagrams, Component Testing Procedures
Specifications And Data:
Torque Specifications, Clearance Measurements, Fluid Capacities, Electrical Resistance Values, Component Dimensions
Depth:
Comprehensive (from basic maintenance to complete engine and transmission rebuilds)
Diagnostic Capability:
Advanced diagnostic procedures utilizing Subaru's Select Monitor (SSM) or equivalent diagnostic tools
Wrx Engine Type:
Horizontally Opposed (Boxer), Turbocharged, Intercooled, DOHC, 16-valve, 4-Cylinder
Sti Engine Type:
Horizontally Opposed (Boxer), Turbocharged, Intercooled, DOHC, 16-valve, 4-Cylinder (with specific STI enhancements)
Displacement:
2.5 Liters (2457 cc)
Wrx Horsepower:
Approx. 265 hp @ 6000 rpm
Wrx Torque:
Approx. 244 lb-ft @ 2000 rpm
Sti Horsepower:
Approx. 305 hp @ 6000 rpm
Sti Torque:
Approx. 290 lb-ft @ 4000 rpm
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Injection System:
Multi-point Fuel Injection (MPI)
ECU Type:
Denso ECM (Specific part numbers vary)
Wrx Transmission:
6-Speed Manual
Sti Transmission:
6-Speed Manual (with DCCD - Driver Controlled Center Differential)
Transmission Options:
None for WRX/STI performance models in this year
Drivetrain:
Symmetrical All-Wheel Drive (AWD) with Variable Torque Distribution
Sti Center Differential:
Driver Controlled Center Differential (DCCD) allowing manual adjustment of front/rear torque bias
Wheelbase:
103.3 inches (2624 mm)
Length:
179.5 inches (4560 mm)
Width:
70.7 inches (1796 mm)
Height:
58.1 inches (1476 mm)
Ground Clearance:
Approx. 5.0 inches (127 mm)
Curb Weight:
Approx. 3,330 - 3,450 lbs (1510 - 1565 kg) depending on trim/body style
Gross Vehicle Weight Rating:
Approx. 4,550 lbs (2064 kg)
Towing Capacity:
Not Recommended/Specified
NHTSA Overall Rating:
4-Star (for 2013 models in general, specific WRX/STI ratings may vary)
IIHS Ratings:
Good (Various categories, check specific model year for details)
Traction Control:
Standard
Electronic Stability Control:
Standard (Subaru VDC - Vehicle Dynamics Control)
ABS:
Standard Anti-lock Braking System
Ebd:
Standard Electronic Brake-force Distribution
Airbags:
Front, Side Curtain, Front Side Impact
Seatbelts:
3-point with pretensioners and load limiters
Child Seat Anchors:
LATCH system
Head Unit:
Standard AM/FM/CD/MP3 audio system with Aux input and possibly Bluetooth. Higher trims may have navigation.
Display:
Central LCD display for audio and climate information.
Reversing Camera:
Optional on some trims.
Bluetooth:
Optional, for hands-free calling and audio streaming.
Dccd Control:
STI models feature DCCD for adjustable center differential lock-up, significantly impacting handling characteristics.
Oil Change Interval:
Every 3,750 miles or 6 months (severe driving conditions) or 7,500 miles or 12 months (normal driving conditions) - Consult manual for specifics
Air Filter Replacement:
Every 15,000 miles or 12 months
Spark Plug Replacement:
Every 30,000 miles (WRX) or 30,000 miles (STI - Iridium type)
Engine Oil Type:
SAE 5W-30 Synthetic (API SN or ILSAC GF-5 compliant)
Engine Oil Capacity:
Approx. 5.5 US quarts (5.2 liters) with filter change
Transmission Fluid Type:
Subaru Extra-S Gear Oil (GL-5) or equivalent 75W-90 Synthetic
Transmission Fluid Capacity:
Approx. 3.0 US quarts (2.8 liters)
Differentials Fluid Type:
Subaru Extra-S Gear Oil (GL-5) or equivalent 75W-90 Synthetic
Differentials Fluid Capacity Front:
Approx. 0.9 US quarts (0.85 liters)
Differentials Fluid Capacity Rear:
Approx. 1.1 US quarts (1.0 liter)
Coolant Type:
Subaru Super Coolant (Blue) or equivalent (50/50 mix)
Engine Oil Consumption:
Some EJ25 engines, particularly when pushed hard, may exhibit higher than average oil consumption. Regular checks are advised.
Clutch Wear:
Aggressive driving can lead to accelerated clutch wear.
Suspension Components:
Due to the performance nature, suspension bushings and components may require more frequent inspection and replacement.
Turbocharger Care:
Proper warm-up and cool-down procedures are crucial for turbocharger longevity. The manual will detail these.
Subaru Performance Legacy:
Strong roots in rallying and motorsport, known for boxer engines and AWD
Impreza Generations:
This is the third generation (GH/GE/GR/GV) of the Impreza, with the WRX and WRX STI representing the performance variants.
2013 Model Year Changes:
The 2013 model year saw a significant shift away from the hatchback body style for WRX/STI in North America, focusing primarily on the sedan. The WRX also received suspension and engine tuning updates.
Assembly Location:
Gunma, Japan
Performance Accolades:
Subaru WRX and STI models consistently receive praise for their performance, handling, and all-wheel-drive capabilities in automotive reviews and enthusiast communities.
Enthusiast Favorite:
Highly regarded by enthusiasts for track days, autocross, and spirited driving.
