The Subaru Impreza WRX STI, produced for the 2011-2012 model years, represents the pinnacle of Subaru's rally-bred performance heritage. Available in both 4-door sedan and 5-door hatchback body styles, this GR/GV generation model is powered by the iconic EJ257 2.5-liter turbocharged Boxer engine, delivering 305 horsepower and 290 lb-ft of torque. Renowned for its Symmetrical All-Wheel Drive system, Driver Controlled Center Differential (DCCD), and exceptional handling capabilities, the WRX STI is engineered for enthusiasts and performance driving, building upon Subaru's extensive World Rally Championship success.

This comprehensive factory service manual provides in-depth coverage for the Subaru Impreza WRX STI (GR/GV generation). Spanning over 1500 pages, it details all aspects of vehicle service and repair, including complete engine overhaul procedures for the EJ257, manual transmission maintenance, drivetrain components, suspension, steering, brakes, and electrical systems. The manual also covers bodywork, HVAC, fuel, and emissions systems, along with extensive troubleshooting guides, diagnostic procedures, and scheduled maintenance instructions. It serves as an essential resource for owners, mechanics, and technicians aiming to maintain, diagnose, and repair this high-performance vehicle.

The Subaru Impreza WRX STI, produced for the 2011-2012 model years, represents the pinnacle of Subaru's rally-bred performance heritage. Available in both 4-door sedan and 5-door hatchback body styles, this GR/GV generation model is powered by the iconic EJ257 2.5-liter turbocharged Boxer engine, delivering 305 horsepower and 290 lb-ft of torque. Renowned for its Symmetrical All-Wheel Drive system, Driver Controlled Center Differential (DCCD), and exceptional handling capabilities, the WRX STI is engineered for enthusiasts and performance driving, building upon Subaru's extensive World Rally Championship success.

This comprehensive factory service manual provides in-depth coverage for the Subaru Impreza WRX STI (GR/GV generation). Spanning over 1500 pages, it details all aspects of vehicle service and repair, including complete engine overhaul procedures for the EJ257, manual transmission maintenance, drivetrain components, suspension, steering, brakes, and electrical systems. The manual also covers bodywork, HVAC, fuel, and emissions systems, along with extensive troubleshooting guides, diagnostic procedures, and scheduled maintenance instructions. It serves as an essential resource for owners, mechanics, and technicians aiming to maintain, diagnose, and repair this high-performance vehicle.