Subaru 2007 Impreza, Brochure & Specs, Page: 14 / 21

Impreza WRX Limited Sedan shown in Urban Gray Metallic.
SUBARU BOXER ENGINE | TRANSMISSION
Impreza engines are constructed of aluminum alloy for reduced weight, which helps
quicken acceleration and handling. Enhanced with i-Active Valve Lift System in the
2.5i and Outback Sport, and Active Valve Control System in the WRX and WRX STI,
for increased horsepower and a broader torque curve creating a virtually seamless
supply of power. And they use Electronic Throttle Control (ETC) for a more precise
and immediate response to the nuances of your right foot. It all works together to
deliver exceptional power, along with proven reliability and durability.
MANUAL TRANSMISSION
For those who prefer
to row their own gears. Both the 5-speed of the
2.5i, Outback Sport and WRX, and the close-ratio
6-speed transmission of the WRX STI are fully
synchronized to deliver smooth and precise shifts.
The short-throw shifter of the WRX STI is engi-
neered to produce fl uid, positive engagement.
AUTOMATIC TRANSMISSION
The electronic
direct-control 4-speed automatic unit provides
seamless shifts under a variety of driving condi-
tions. The convenient automatic transmission is
optional on most Impreza models.
2.5i AND OUTBACK SPORT
The aluminum-alloy
2.5-liter 4-cylinder engine utilizes a computer-
controlled i-Active Valve Lift System that brews
up 173 horsepower, and delivers a broader
torque curve for seamless power. And it gets
up to 22/29 mpg in city/highway driving.
WRX With a hood scoop to aid air intake to the
intercooler, the turbocharged 2.5-liter engine of
the WRX delivers 224 potent horsepower. Peak
torque of 226 lb-ft is reached at a low 3,600
rpm, thanks to the Active Valve Control System
increasing overall breathability for more power
throughout the rev range.