Subaru Impreza WRX STI - Manual

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) 1 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. 2
Tires 225/45 R17 summer-performance 245/40 R18 93W ultra-high-performance
Paint
Exterior
Upholstery
Spark Silver Metallic
Obsidian Black Pearl WR Blue Mica
Lightning Red Satin 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 BA 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