This comprehensive 2004 Subaru Impreza Factory Service Workshop Repair Manual provides in-depth technical information for both the WRX STI and non-turbo models. The manual covers a wide range of topics, including the STI engine, H4SO engine, H4DOTC engine, transmission, chassis, body, and wiring. You'll find detailed instructions, diagrams, and specifications for everything from routine maintenance to complex repairs. Whether you're a professional mechanic or a DIY enthusiast, this manual is an essential resource for keeping your 2004 Subaru Impreza running smoothly.

The 2004 Subaru Impreza WRX STI is a high-performance compact car that embodies the spirit of rally racing. Built on the legacy of its predecessors, this iteration boasts a potent 2.5-liter turbocharged boxer engine (H4SO) paired with a 6-speed manual transmission. The STI's mechanical heart delivers an impressive 300 horsepower and 300 lb-ft of torque, channeling power through an all-wheel drive system for exceptional handling and grip. This potent combination allows the WRX STI to accelerate from 0 to 60 mph in just under 5 seconds, making it a serious contender on the road and track. Beyond sheer power, the 2004 STI is meticulously engineered for performance. Its chassis is reinforced for increased rigidity, enhancing handling precision. Advanced suspension components, including adjustable dampers and a rear limited-slip differential, further enhance control and cornering stability. The WRX STI also features a robust braking system with large vented discs to ensure confident stopping power. The 2004 Subaru Impreza WRX STI is a highly sought-after vehicle for both enthusiasts and collectors alike. Its distinctive styling, with aggressive bodywork and a large rear wing, further adds to its street presence. The interior is driver-focused, featuring supportive sport seats, a sporty steering wheel, and a comprehensive instrument panel. However, the true essence of this vehicle lies in its ability to seamlessly blend performance and practicality. While capable of thrilling driving experiences, the WRX STI remains a comfortable and functional daily driver. Its user-friendly nature and robust construction make it a reliable and engaging companion for both everyday commutes and weekend adventures. The 2004 Subaru Impreza WRX STI represents a pinnacle of Subaru's performance legacy, captivating enthusiasts with its raw power, engaging handling, and timeless design.