The 2017 Subaru WRX STI Limited is the upscale version of Subaru’s rally-influenced, all-wheel-drive performance sedan, pairing the STI’s 305-hp turbocharged powertrain and driver-adjustable AWD system with additional comfort and technology. It preserves the raw, manual-transmission character of the regular STI while making the cabin substantially better equipped. Amazon Web Services, Inc.
The centerpiece is the 2.5-liter turbocharged EJ257 flat-four, producing 305 hp at 6,000 rpm and 290 lb-ft at 4,000 rpm, exclusively paired with a reinforced six-speed manual. Brembo brakes, STI-tuned suspension, Active Torque Vectoring, and 245/40R18 summer tires reinforce its focus on grip and driver involvement rather than straight-line performance alone. EPA ratings were 17 mpg city and 23 highway. Amazon Web Services, Inc.
The Driver Controlled Center Differential (DCCD) is one of the STI's defining features. Its full-time AWD system uses a nominal 41:59 front/rear torque split, with three automatic DCCD modes plus six manual differential-lock settings; a helical limited-slip front differential and Torsen limited-slip rear differential further manage power across the axles. This unusually adjustable drivetrain is a major distinction between the STI and ordinary AWD performance cars. Subaru Canada
The Limited keeps the STI mechanical package but adds 18-inch forged BBS wheels, leather upholstery, an eight-way power driver's seat, power moonroof, keyless access and push-button start, blind-spot monitoring with rear cross-traffic alert, navigation, and a nine-speaker Harman Kardon audio system. Buyers could also choose the traditional large STI rear wing or a subtler low-profile trunk spoiler. PR Newswire
The 2017 car belongs to the pre-2018 version of this STI generation, before Subaru introduced larger 19-inch wheels, six-piston front Brembos and a revised electronically controlled DCCD for 2018. 株式会社SUBARU（スバル）企業情報サイト That makes the 2017 Limited an interesting snapshot of the old-school STI formula: hydraulic steering, a relatively firm chassis, a turbo engine with pronounced character, a manual gearbox, sophisticated mechanical differentials, and few layers between the driver and the drivetrain. Contemporary reviews praised its sharp handling and exceptional AWD grip while criticizing its harshness and relative lack of refinement.
