The new Subaru Impreza WRX STI, with a heavily-revised new 296 bhp
turbocharged 2.5 liter ‘boxer’ engine, totally new platform and
suspension plus even more advanced symmetrical all-wheel drive
system, the World Rally Championship look-alike is sure to satisfy
Subaru traditionalists.
At the rear, four exhaust pipes twinned in pairs at either side of
the body not only give a distinctive look but reduce exhaust
air-flow resistance by 38 per cent, increasing power and reducing
noise. The new Impreza WRX STI boasts a much plusher interior than
before, offering leather/Alcantara-covered sports seats as standard
with Recaro seats as an option. Curtain airbags are standard and
the audio system has been upgraded.
The braking system has been developed in conjunction with Italian
specialist, Brembo, and features four-pot calipers at the front and
twin-pot at the rear ��" both ventilated discs.
A multi-mode Vehicle Dynamics Control System allows the driver to
select the best setting for the prevalent road conditions. For
example, it can be turned off altogether or set to ‘Traction’
which delays artificial interference.
More Power, More Driver Involvement
The award-winning 2.5 liter horizontally-opposed ‘boxer’ engine
benefits from a thorough revision which includes a larger and more
efficient intercooler which increases power.
The new
Subaru Impreza STI also boasts stronger low to
mid-speed torque thanks to variable-valve timing for the intake and
exhaust system and a fast-warm catalytic converter for reduced
emissions.
Power is now 296 bhp at 6,000 rpm with torque of 300 lb-ft at 4,000
rpm.
The much-praised six-speed manual transmission has been revised,
with a shorter-throw gear-change and lighter movements, especially
from neutral to 1st and 1st to 2nd gear thanks to a revised
synchromesh.
A firm favorite with existing STI owners, the Driver’s Control
Centre Differential has been improved, giving even more choice of
handling characteristics.
The DCCD is operated via a switch in the centre console, allowing
the driver to manually select the torque distribution front to
rear, reverting to automatic mode every time the ignition is
switched off....
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Date Published: Apr 17, 2008 - 8:05 pm