The Mazda3 MPS, also known as the Mazdaspeed3, is a performance compact hatchback produced for the 2007, 2008, and 2009 model years. This driver-focused variant of the standard Mazda3 features a potent turbocharged 2.3-liter MZR DISI Turbo inline-4 engine, delivering 263 horsepower and 280 lb-ft of torque, paired with a 6-speed manual transmission and a helical limited-slip differential. Its engineering quality is reflected in its sport-tuned suspension, aggressive styling, and a robust chassis designed for spirited driving. Recognized for its performance, it was named to Car and Driver's 10Best list for 2007 and 2008 and was a finalist for World Performance Car of the Year in 2007, competing with other high-performance hatchbacks of its era. This comprehensive factory service manual provides detailed information for the global service and repair of the Mazda3 MPS (BK chassis) from 2007-2009. It covers all major systems, including the engine, drivetrain, suspension, brakes, and electrical systems, offering in-depth procedures for routine and scheduled maintenance, diagnostics, troubleshooting, component removal and installation, and repair. With an estimated 2000+ pages of content, this English-language manual is an invaluable resource for owners, mechanics, and technicians seeking to maintain, diagnose, and repair this performance vehicle, ensuring its optimal operation and longevity.