The Subaru Impreza WRX STi 2004 Service Factory Workshop Manual is an indispensable resource for anyone who wants to maintain and repair their vehicle. This comprehensive manual provides detailed instructions and step-by-step diagrams for all workshop procedures, covering every aspect of the car's systems. Dive deep into the intricate workings of the STi engine, exploring its fuel injection, emission control, intake, mechanical, exhaust, cooling, lubrication, speed control, and ignition systems. The manual provides a comprehensive understanding of each component, allowing you to diagnose and address any issues with confidence. This essential guide empowers you to perform routine maintenance, tackle complex repairs, and ensure your Subaru Impreza WRX STi 2004 runs smoothly and efficiently. The information presented in the manual is clear, concise, and easy to understand, making it a valuable tool for both professional mechanics and DIY enthusiasts.

The Subaru Impreza WRX STi, a legendary performance car, was introduced in 2004 as a pinnacle of Subaru's rally-bred legacy. This generation, known as the "Bugeye" for its distinctive headlights, built upon the success of previous WRX models, pushing the boundaries of performance and handling. Under the hood resided a potent 2.5-liter turbocharged boxer engine, producing a formidable 300 horsepower and 300 lb-ft of torque. The STi's rally-inspired suspension, with its adjustable dampers and stiff springs, delivered exceptional cornering prowess and agility, making it a true driver's car. Coupled with a six-speed manual transmission, the WRX STi offered a thrilling and engaging driving experience. The car's iconic "blue" body color, aggressive styling, and iconic "STi" badge became synonymous with raw performance and Subaru's dedication to motorsport. This particular 2004 Subaru Impreza WRX STi is not just a car; it is also a machine that demands meticulous care and maintenance. The factory service workshop manual provides a comprehensive guide for owners and mechanics alike, offering detailed instructions on everything from routine maintenance like oil changes and tire rotations to complex repairs involving engine components, transmissions, and electrical systems. This manual is an invaluable resource for keeping the STi performing at its peak, ensuring its longevity and preserving its legendary status. It empowers owners to understand the car's intricacies, address issues proactively, and maintain the exhilarating driving experience that the WRX STi offers. The factory workshop manual becomes an extension of the car itself, a vital tool for enthusiasts and professionals dedicated to keeping this iconic machine running strong and ready for the open road.