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 by Richard Owen
production 500
price $ $30 000 USD
engine Turbocharged Flat-4
position Front
aspiration Turbocharged
valvetrain DOHC, 4 Valves per Cyl w/AVCS Variable Valve Timing
fuel feed Electronic Injection
displacement 2457 cc / 149.9 in³
bore 99.5 mm / 3.92 in
stroke 79 mm / 3.11 in
compression 8.2:1
power 223.7 kw / 300.0 bhp @ 6000 rpm
specific output 122.1 bhp per litre
bhp/weight 202.7 bhp per tonne
torque 406.75 nm / 300 ft lbs @ 4000 rpm
redline 7000
body / frame Unit Steel w/Aluminum Hood
driven wheels 4WD w/Driver Controlled Center Differential, SureTrac Front LSD,
front tires 225/45R17 Bridgestone Potenza RE070
rear tires 225/45R17 Bridgestone Potenza RE070
front brakes Brembro Vented Discs w/4-Piston Calipers, EBD, ABS
f brake size x 323 mm / x 12.7 in
rear brakes Brembro Vented Discs w/2-Piston Calipers, EBD, ABS
r brake size x 312 mm / x 12.3 in
front wheels F 43.2 x 19.0 cm / 17.0 x 7.5 in
rear wheels R 43.2 x 19.0 cm / 17 x 7.5 in
steering Rack & Pinion w/Variable Assist
f suspension MacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
r suspension MacPherson Struts w/Lower L-Arms, Coil Springs, Tube Shocks, 20mm Anti-Roll Bar
curb weight 1480 kg / 3263 lbs
wheelbase 2540 mm / 100 in
front track 1491 mm / 58.7 in
rear track 1486 mm / 58.5 in
length 4415 mm / 173.8 in
width 1740 mm / 68.5 in
height 1430 mm / 56.3 in
transmission 6-Speed Manual
gear ratios 3.636:1, 2.375:1, 1.761:1, 1.346:1, 0.971:1, 0.756:1, :1
final drive 3.90:1
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