ENGINE AND DRIVETRAIN

2.0-liter DOHC turbocharged engine

WRX Premium, WRX Limited

 

Power: 268 hp @ 5600 rpm

WRX Premium, WRX Limited

 

Torque: 258 lb-ft @ 2000 - 5200 rpm

WRX Premium, WRX Limited

 

Bore and stroke: 86.0 x 86.0 mm

WRX Premium, WRX Limited

 

Twin scroll turbocharger with intercooler

WRX Premium, WRX Limited

 

Maximum boost pressure: 15.9 psi.

WRX Premium, WRX Limited

 

Direct fuel injection

Direct fuel injection, Electronic Throttle Control (ETC), Direct ignition

WRX Premium, WRX Limited

 

2.5-liter DOHC turbocharged engine

2.5-liter DOHC Intercooled, turbocharged aluminum-alloy 16-valve 4-cylinder horizontally opposed SUBARU BOXER® engine with Active Valve Control System (AVCS)

WRX STI, WRX STI Limited

 

Power: 305 hp @ 6000 rpm

WRX STI, WRX STI Limited

 

Torque: 290 lb-ft @ 4000 rpm

WRX STI, WRX STI Limited

 

Bore and stroke: 99.5 x 79.0 mm

WRX STI, WRX STI Limited

 

Turbocharger with intercooler

WRX STI, WRX STI Limited

 

Maximum boost pressure: 14.7 psi

WRX STI, WRX STI Limited

 

Sequential multiport fuel injection

Sequential multiport fuel injection, Electronic Throttle Control (ETC), Direct ignition

WRX STI, WRX STI Limited

 

Subaru Intelligent Drive (SI-DRIVE)

SI-DRIVE enables three distinctively different modes of vehicle performance characteristics by regulating the Engine Control Unit (ECU) and by fine-tuning the electronically controlled throttle.

WRX Premium, WRX Limited

WRX STI, WRX STI Limited

 

Fully-synchronized 6-speed manual transmission

Fully-synchronized close-ratio 6-speed manual with Incline Start Assist

WRX Premium, WRX Limited, WRX STI, WRX STI Limited

 

Sport Lineartronic® transmission with paddle shifters

Sport Lineartronic transmission with paddle shifters and 6- and 8-speed manual modes

WRX Premium, WRX Limited

 

STABILITY AND TRACTION

Symmetrical All-Wheel Drive

WRX Premium, WRX Limited, WRX STI, WRX STI Limited

 

Continuous AWD

WRX Premium, WRX Limited

 

Variable Torque Distribution (VTD) AWD

WRX Premium, WRX Limited

 

Driver Controlled Center Differential (DCCD) All-Wheel Drive

Exclusive to WRX STI, DCCD All-Wheel Drive uses an electronically managed multi-plate transfer clutch and a mechanical limited-slip differential in conjunction with a planetary-gear-type center differential to control power distribution between the front and rear wheels. Featuring manual and three automatic modes, DCCD splits power 41% front and 59% rear. Sensors monitor parameters such as wheel slippage, steering angle, throttle position and braking to help determine torque distribution and direct it to the wheels with optimum traction. DCCD also features a limited-slip helical front and Torsen® rear differential.

WRX STI, WRX STI Limited

 

Active Torque Vectoring

WRX Premium, WRX Limited, WRX STI, WRX STI Limited

 

Vehicle Dynamics Control (VDC)

VDC electronic stability control utilizes sensors that constantly monitor wheel speed, steering angle, brake pressure, vehicle yaw rate and lateral g-forces. If VDC detects a difference between the driver's intended path and the one the vehicle is actually taking, VDC applies braking power and/or reduces engine torque to help correct vehicle path. Exclusive to WRX STI, VDC features Standard, Off and Performance-oriented Traction modes.

WRX Premium, WRX Limited, WRX STI, WRX STI Limited

 

Traction Control System (TCS)

VDC also incorporates an all-wheel, all-speed TCS that, when sensing a loss of traction, applies braking force and reduces engine torque to the slipping wheel or wheels as necessary to maintain vehicle motion.

WRX Premium, WRX Limited, WRX STI, WRX STI Limited

 

FUEL

Fuel economy**, WRX w/ manual transmission (hwy/city): 28/21 MPG

WRX Premium, WRX Limited

 

Fuel economy**, WRX w/ Sport Lineartronic transmission (hwy/city): 25/19 MPG

WRX Premium, WRX Limited

 

Fuel economy**, STI (hwy/city): 23/17 MPG

WRX STI, WRX STI Limited

 

Fuel requirement: Regular unleaded gasoline (87 octane)

Regular unleaded gasoline (87 octane) required. 91 octane recommended.

WRX Premium, WRX Limited

 

Fuel requirement: Premium unleaded gasoline (91 octane)

Premium unleaded gasoline (91 octane) required. 93 octane recommended.

WRX STI, WRX STI Limited

 

CHASSIS

Quick-ratio electric power-assisted rack-and-pinion steering (EPAS)

Power-assisted rack-and-pinion steering, turning circle: 35.4 ft. Ratio: 14.5:1

WRX Premium, WRX Limited

 

Quick-ratio power-assisted rack-and-pinion steering

Power-assisted rack-and-pinion steering, turning circle: 36.0 ft. Ratio: 13.0:1

WRX STI, WRX STI Limited

 

Sport-tuned 4-wheel independent suspension

Front: strut-type with aluminum-alloy lower L-arm and pillow ball bushing, stabilizer bar; Rear: double wishbone with pillow ball lateral link bushing, stabilizer bar

WRX Premium, WRX Limited

 

High-performance sport-tuned 4-wheel independent suspension

Front: inverted strut-type with aluminum-alloy lower L-arm and pillow-ball joint mount, stabilizer bar; Rear: double wishbone with pillow ball lateral link bushing, stabilizer bar

WRX STI, WRX STI Limited

 

4-wheel disc, ventilated front brakes.

Dual-piston front and single-piston rear calipers, 4-channel, 4-sensor ABS with Electronic Brake-force Distribution (EBD); Front: 12.4 inches/Rear: 11.3 inches

WRX Premium, WRX Limited

 

Brembo® performance braking system

4-wheel disc, ventilated front and rear. 4-piston front and dual-piston rear calipers. 4-channel, 4-sensor Super Sport ABS with Electronic Brake-force Distribution (EBD); Front: 13.0 inches/Rear: 12.6 inches

WRX STI, WRX STI Limited

 

Brake Assist

When emergency braking is detected by how quickly the brake pedal is pressed, maximum brake pressure is immediately applied.

WRX Premium, WRX Limited, WRX STI, WRX STI Limited