2011 Subaru Impreza WRX STI
Engine Location Front
Drive Type AWD
Symmetrical AWD w/Driver Control Center Differential
Body / Chassis Unitized Body Construction
Production Years for Series 2008 -
Weight 3384 lbs | 1534.957 kg
Introduced At 2010 New York International Auto Show
Engine
Engine Configuration O
Cylinders 4
Aspiration/Induction Turbocharged
Displacement 2457 cc | 149.9 cu in. | 2.5 L.
Valves 16 valves.
4 valves per cylinder.
Valvetrain DOHC
Horsepower 305 HP (224.48 KW) @ 6000 RPM
Torque 290 Ft-Lbs (393 NM) @ 4000 RPM
HP to Weight Ratio 11.1 LB / HP
HP / Liter 124.1 BHP / Liter
Compression Ratio 8.2:1
Fuel Feed Fuel Injected
Block Aluminum Alloy
Standard Transmission
Gears 6
Transmission Manual
Final Drive 3.90
Gear Ratios
1st Gear 3.636
2nd Gear 2.235
3rd Gear 1.521
4th Gear 1.137
5th Gear 0.971
6th Gear 0.756
Suspension
Suspension Front : Inverted struts with forged aluminum-alloy lower L-arms, crossmember stiffener bar, coil springs, 21mm stabilizer bar, STI designed components and geometry
Rear : Double-wishbone type with coil springs and damper units, 19mm stabilizer bar and STI designed components and geometry
Brakes
Front Brake Size 13.0 in | 330 mm.
Rear Brake Size 12.6 in | 320 mm.
Tires / Wheels
Tires 245/40R18 93W Dunlop SP Sport 600 summer