This manual covers the 2001 Subaru Impreza, specifically Japanese Domestic Market (JDM) models with chassis codes GDB-A for the WRX STI and GDA-A for the WRX. The Impreza of this generation is renowned for its rally heritage, featuring Subaru's signature Symmetrical All-Wheel Drive and potent turbocharged Boxer engines, including the EJ205 in the WRX and the EJ207 in the WRX STI. These performance variants, with their compact dimensions and robust engineering, were designed for enthusiasts and drivers seeking exceptional handling and power, drawing directly from Subaru's World Rally Championship success.

This comprehensive factory service manual provides detailed information essential for the maintenance, diagnosis, and repair of your 2001 Subaru Impreza. It covers all major vehicle systems, including engine mechanical and electrical components, fuel, exhaust, transmission, drivetrain, suspension, steering, brakes, body, and interior. The manual includes step-by-step repair procedures, diagnostic guides, torque specifications, wiring diagrams, and information on scheduled maintenance. Its factory-level detail ensures that owners, mechanics, and technicians have the necessary resources to keep the vehicle in optimal condition.