2003 Subaru Impreza WRX STi


2003 Subaru Impreza WRX STi

2003 Subaru Impreza WRX STi

Subaru’s strikingly restyled Impreza made its world debut at the Paris Motor Show on 26 September, 2003. The facelift is shared with the 2003 World Rally Car which will benefit from a similar reduction in drag coefficient and improved high-speed stability. Key design changes include a new front bumper, spoiler, bonnet, wings and headlamps.

The WRX STi gains a larger high-rise rear spoiler, front corner spoilers and new side sill spoilers which all contribute to improved high-speed stability. Meanwhile, a larger bonnet air intake enhances intercooler cooling. The STi also has improved front suspension thanks to strengthened mounts for the transverse linkages and new cross-performance rods. As a result, handling and steering response are even better thanks to a reduction in geometry change during hard cornering.

In Detail

submitted byRichard Owen
production500
price $$30 000 USD
engineTurbocharged Flat-4
positionFront
aspirationTurbocharged
valvetrainDOHC, 4 Valves per Cyl w/AVCS Variable Valve Timing
fuel feedElectronic Injection
displacement2457 cc / 149.9 in³
bore99.5 mm / 3.92 in
stroke79 mm / 3.11 in
compression8.2:1
power223.7 kw / 300.0 bhp @ 6000 rpm
specific output122.1 bhp per litre
bhp/weight202.7 bhp per tonne
torque406.75 nm / 300 ft lbs @ 4000 rpm
redline7000
body / frameUnit Steel w/Aluminum Hood
driven wheels4WD w/Driver Controlled Center Differential, SureTrac Front LSD,
front tires225/45R17 Bridgestone Potenza RE070
rear tires225/45R17 Bridgestone Potenza RE070
front brakesBrembro Vented Discs w/4-Piston Calipers, EBD, ABS
f brake sizex 323 mm / x 12.7 in
rear brakesBrembro Vented Discs w/2-Piston Calipers, EBD, ABS
r brake sizex 312 mm / x 12.3 in
front wheelsF 43.2 x 19.0 cm / 17.0 x 7.5 in
rear wheelsR 43.2 x 19.0 cm / 17 x 7.5 in
steeringRack & Pinion w/Variable Assist
f suspensionMacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
r suspensionMacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
curb weight1480 kg / 3263 lbs
wheelbase2540 mm / 100 in
front track1491 mm / 58.7 in
rear track1486 mm / 58.5 in
length4415 mm / 173.8 in
width1740 mm / 68.5 in
height1430 mm / 56.3 in
transmission6-Speed Manual
gear ratios3.636:1, 2.375:1, 1.761:1, 1.346:1, 0.971:1, 0.756:1, :1
final drive3.90:1
top speed~249.4 kph / 155.0 mph
0 – 60 mph~4.8 seconds
0 – 100 mph~12.6 seconds
0 – 1/4 mile~13.3 seconds