Subaru Impreza WRX STI User Manual download pdf

Impreza WRX

WRX

STI

Speciﬁcations

EXTERIOR DIMENSIONS

WRX 4-door WRX 5-door WRX STI 5-door

Length/Width/Height 180.3 inches/68.5 inches/58.1 inches 173.8 inches/68.5 inches/58.1 inches 173.8 inches/70.7 inches/58.1 inches

Wheelbase 103.1 inches 103.1 inches 103.3 inches

Track (front/rear) 58.9 inches/59.1 inches 58.9 inches/59.1 inches 60.2 inches/60.6 inches

Base curb weight WRX: 3,174 lbs | WRX Premium: 3,229 lbs WRX: 3,174 lbs | WRX Premium: 3,229 lbs 3,395 lbs

INTERIOR DIMENSIONS

Headroom (front/rear)

40.3 inches/37.6 inches

(with moonroof: 39.3 inches/37.5 inches)

40.3 inches/37.6 inches

(with moonroof: 39.3 inches/37.4 inches)

40.3 inches/37.6 inches

Legroom (front/rear) 43.5 inches/33.5 inches 43.5 inches/33.5 inches 43.5 inches/33.5 inches

Shoulder room (front/rear) 54.8 inches/53.2 inches 54.8 inches/53.2 inches 54.8 inches/53.2 inches

Passenger volume 94.6 cubic feet (with moonroof: 93.0 cubic feet) 94.6 cubic feet (with moonroof: 93.2 cubic feet) 94.4 cubic feet

Cargo volume 11.3 cubic feet

19.0 cubic feet

(44.4 cubic feet with rear seat lowered)

19.0 cubic feet

(44.4 cubic feet with rear seat lowered)

ENGINE AND DRIVETRAIN

WRX and WRX Premium WRX STI

Engine 2.5-liter DOHC intercooled, turbocharged aluminum-alloy 16-valve 4-cylinder horizontally opposed SUBARU BOXER

engine.

Power 265 hp @ 6,000 rpm 305 hp @ 6,000 rpm

Torque 244 lb-ft @ 4,000 rpm 290 lb-ft @ 4,000 rpm

Compression ratio 8.4:1 8.2:1

Bore and stroke 99.5 x 79.0 mm

Valve timing Active Valve Control System (AVCS) Dual Active Valve Control System (DAVCS)

Intake system

Turbocharger with intercooler.

Maximum boost pressure: 14.2 psi.

Turbocharger with high-cross-flow-design intercooler.

Maximum boost pressure: 14.7 psi.

Fuel and ignition system

Sequential multiport fuel injection. Electronic Throttle Control (ETC). Engine management with integrated self-diagnostics and adaptive driving

habits capability. Direct ignition.

SI-DRIVE performance

management system

Not available

Subaru Intelligent 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.

Transmission

Fully synchronized 5-speed manual

with Incline Start Assist

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

CA Emissions Certified Low Emission Vehicle (LEV2)

FUEL

Fuel economy (city/highway)

18/25 mpg 17/23 mpg

Fuel requirement Premium unleaded gasoline (91 octane) required. 93 octane recommended (WRX STI).

SYMMETRICAL ALL-WHEEL DRIVE

Continuous All-Wheel Drive

WRX models utilize a viscous-type locking center differential with torque distribution normally configured at a 50/50-split front-to-rear. If wheel

speed differs between front and rear axles, the system helps distribute power to the wheels with the most traction.

Driver Controlled Center

Differential (DCCD)

All-Wheel Drive

Exclusive to WRX STI, Driver Controlled Center Differential (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.

STABILITY AND TRACTION

Vehicle Dynamics Control (VDC)

VDC electronic stability control utilizes sensors which 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.

Traction Control System (TCS)

VDC also incorporates an all-wheel, all-speed traction control system which, 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.

CHASSIS

Steering Power-assisted rack-and-pinion. Turning circle, WRX: 35.4 feet. WRX STI: 36.1 feet.

Suspension

Sport-tuned 4-wheel independent suspension.

Front: Strut-type with lower L-arm.

Rear: Double wishbone.

Front and rear stabilizer bars.

High-performance sport-tuned 4-wheel independent suspension.

Front: Inverted-strut-type with aluminum-alloy lower L-arm.

Rear: Double wishbone.

Front and rear stabilizer bars.

Brakes

4-wheel disc, ventilated front. Dual-piston front and

single-piston rear calipers. 4-channel, 4-sensor ABS with

Electronic Brake-force Distribution (EBD).

Front: 11.6 inches/Rear: 11.3 inches

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

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

WHEELS AND TIRES

Wheels 17 x 7.0-inch 10-spoke aluminum-alloy. Gray color.

18 x 8.5-inch 5-spoke aluminum-alloy. High-luster silver finish.

Optional 18 x 8.5-inch 18-spoke BBS

aluminum-alloy. Silver or gold color.

Tires 225/45 R17 summer-performance 245/40 R18 93W ultra-high-performance

Paint

Exterior

Upholstery

Spark Silver Metallic

Obsidian Black PearlWR Blue Mica

Lightning RedSatin White Pearl

Dark Gray Metallic

Black Alcantara

Carbon Black Leather (BA)

Carbon Black Checkered

Cloth (CBCC)

Satin White Pearl

CBCC BA

Gold

Spark Silver Metallic

CBCC BA

Silver

Lightning Red

CBCC

Silver

WR Blue Mica

CBCC BA

Gold

Dark Gray Metallic

CBCC BA

Silver

Obsidian Black Pearl

CBCC BA

Silver

PAINT

Impreza WRX Color Combinations

WRX and WRX Premium WRX STI

Optional

WRX STI BBS

Wheels

1 2

Summary of Contents

Page 1 - Upholstery

Impreza WRX® | WRX® STI® SpeciﬁcationsEXTERIOR DIMENSIONSWRX 4-door WRX 5-door WRX STI 5-doorLength/Width/Height 180.3 inches/68.5 inches/58.1 inche

Page 2 - WARRANTIES

EXTERIORProjector low-beam and multireflector high-beam halogen headlights • •-High-intensity discharge (HID) low-beam and multireflector halogen hi

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Subaru Impreza WRX STI User Manual

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