This comprehensive Subaru Impreza STI 2004 Workshop Service Repair Manual provides detailed instructions and technical specifications for all aspects of your vehicle's maintenance and repair. From routine servicing like oil changes and tire rotations to complex engine and transmission work, this manual covers it all. Detailed diagrams, schematics, and illustrations guide you through each procedure, ensuring accuracy and efficiency. This manual is an invaluable resource for anyone looking to perform their own repairs, troubleshoot issues, or simply gain a deeper understanding of their Subaru Impreza STI.

The 2004 Subaru Impreza STI is a high-performance version of the Impreza compact car, renowned for its rallying heritage and exceptional handling. This generation of the STI, known as the "Bugeye" due to its distinctive headlights, marked a significant leap forward in performance and technology. Powered by a 2.5-liter EJ257 turbocharged boxer engine, the STI produces an impressive 300 horsepower and 300 lb-ft of torque, making it a formidable force on both the street and the track. The engine is coupled with a close-ratio 6-speed manual transmission, designed for quick gear changes and exhilarating acceleration. Furthermore, the STI boasts a sophisticated all-wheel drive system with a viscous coupling center differential, providing exceptional traction and stability. The 2004 Impreza STI features numerous performance-enhancing upgrades over the standard Impreza, including a stiffer suspension, larger brakes, and wider tires. These modifications contribute to the car's exceptional handling characteristics, allowing it to carve through corners with precision and agility. The STI also features a distinctive aerodynamic body kit, including a larger rear wing and a front bumper with integrated air intakes, which help to improve downforce and stability at higher speeds. The interior of the STI is driver-focused, with supportive sport seats, a thick-rimmed steering wheel, and a comprehensive instrument cluster that displays vital performance information. The 2004 Impreza STI remains a sought-after collectible for its blend of performance, handling, and rally-inspired heritage, making it a true icon in the world of performance vehicles.