This comprehensive workshop repair service manual provides a wealth of technical information specifically designed for the Subaru Impreza WRX STI model year 2011. It covers all models, engines, trim levels, and transmissions, ensuring you have the necessary resources to maintain, repair, and troubleshoot your vehicle. From detailed engine specifications and diagrams to step-by-step repair procedures, this manual is an essential tool for professional mechanics, DIY enthusiasts, and anyone looking to gain a deeper understanding of their Subaru Impreza WRX STI. With its vast array of information, you'll find everything you need to perform routine maintenance, diagnose and address mechanical issues, and confidently navigate any repair scenario.

The Subaru Impreza WRX STI, a performance-oriented variant of the Impreza compact car, has been a staple in the world of rally-inspired street cars since its inception. The 2011 model year marked a significant update for the WRX STI, sporting an aggressive new design, refined handling, and a potent engine. Under the hood resided a 2.5-liter turbocharged flat-four engine, nicknamed the "EJ25," delivering a thrilling 305 horsepower and 300 lb-ft of torque. The engine was paired with a six-speed manual transmission, sending power to all four wheels through Subaru's renowned Symmetrical All-Wheel Drive system. The STI's suspension was meticulously engineered for high-performance driving, featuring a double wishbone setup at the front and a multi-link setup at the rear, offering precise handling and impressive agility. The 2011 WRX STI also featured Brembo brakes, providing powerful stopping power to match the car's performance capabilities. Inside, the WRX STI offered a sporty and functional cabin, with Recaro seats providing excellent support during spirited driving. The interior featured a driver-focused layout, with a three-spoke steering wheel, a center console-mounted shifter, and a dashboard equipped with a comprehensive instrument cluster. The WRX STI was praised for its performance, handling, and value, exceeding expectations in the compact sports car segment. It proved to be a viable alternative to more established competitors, offering a blend of performance and practicality. Since its introduction, the WRX STI has continued to evolve, with subsequent generations featuring enhanced power outputs, updated styling, and advancements in technology. The 2011 model year, however, remains a significant chapter in the WRX STI's history, representing a pinnacle of performance and affordability in the world of compact performance cars.