Subaru Impreza WRX STI for 2011 revealed
2nd April, 2010
Subaru of America has introduced the new 2011 Impreza WRX
STI performance flagship model at the New York Motor Show. In addition to the new styling, the 2011 WRX
STI features significantly revised suspension tuning and lighter 18 inch wheels for even sharper
The Subaru Impreza WRX STI has been a recipient of continuous improvement since its introduction. Most
recently, the 2010 WRX STI Special Edition previewed some of the suspension enhancements now migrated to
the 2011 WRX STI. Thorough and painstakingly detailed chassis development, including testing on Germany's
famed Nurburgring race track, has resulted in the best-handling Impreza WRX STI models Subaru has ever
"The continuous evolution and development of the WRX STI is driven by the strong, loyal and vocal
support from thousands of enthusiastic owners of this exciting high-performance vehicle," said Tom
Doll, executive vice president and COO of Subaru of America, Inc. "The 2011 4-door WRX STI will expand
the appeal of this iconic performance model to a wider range of driving enthusiasts."
New Designs for 2011
In front, the 2011 Subaru Impreza WRX STI models feature sharpened bumper corners and wider, blacked-out
fog lamp nacelles to accentuate the "wide and low" profile. A jutting lip spoiler with three-dimensional
detailing emphasises the cars' sporty intent. The newly designed front grille with black base and
blacked-out Subaru wing highlights the headlights' shape to give the entire front-end a more powerful
appearance, accentuated by larger grille and bumper intake openings.
For the 4-door models, newly designed wider rear guards are stretched out on the side beyond the tail
lamps, accentuating a look of power and stability. The new design details contribute to an improved drag
New Chassis Tuning for 2011
The Subaru Impreza WRX STI was already a highly optimised performance machine. Specific chassis tuning.
Aluminium front lower L-arms reduce unsprung vehicle weight. Major chassis tuning changes include a
lowered ride height and new pillow-ball bushings in front and stiffer bushings for the rear sub-frame that
supports the double-wishbone suspension – these improve camber and toe stiffness.
Both the front and rear suspension systems employ higher-rate springs and thicker front and rear
stabiliser bars than the 2010 model: 21 mm vs. 20 mm in front and 19 mm vs. 18 mm in rear. Spring rates
have increased by 15.6 per cent in front and 53 per cent in the rear.
New standard 18 inch aluminium wheels feature high-lustre paint and weigh 17.6 lbs. less than the
previous standard wheels. The optional 18 x 8.5 inch BBS® forged aluminium-alloy wheels, which further
reduce unsprung vehicle weight, are highlighted by silver high-lustre paint for 2011.
Exclusive to the Impreza WRX STI, the Brembo Performance Brake System uses ventilated 4-wheel Super
Sport anti-lock (ABS) disc brakes with Electronic Brake-force Distribution (EBD). Super Sport ABS can
control the braking forces at each rear wheel independently, which optimises braking ability during hard
cornering to help reduce understeer.
The Ultimate Performance Subaru
The 2011 WRX STI continues as the ultimate-performance Subaru with its high-boost 305-hp
turbocharged/intercooled 4 cylinder Boxer engine and 6 speed manual transmission. The STI also features
Multi-Mode Driver Controlled Centre Differential (DCCD) version of Symmetrical All-Wheel Drive with three
"Auto" modes, as well as a manual mode with six driver-selectable differential locking settings.
The WRX STI is equipped with advanced dynamic control systems, as well: the Multi-Mode Vehicle Dynamics
Control (VDC) stability and traction control system is standard and features a track performance-optimised
mode; Subaru Intelligent Drive (SI-DRIVE) technology allows the driver to tailor the car's driving
characteristics by choosing from among three selectable modes – "Intelligent," "Sport" and "Sport Sharp" –
using a rotary dial on the centre console.
The 2011 Impreza WRX STI models arrive in Subaru dealerships across America in the 3rd quarter this year,
whilst an Australian release is scheduled for late 2010.
Sporty, Spacious and Versatile Interior
New for 2011, the WRX STI interior is finished in black and silver to highlight its sporty design. Trim
panels, the steering wheel air bag cover and steering wheel switches are now dark cast metallic.
The standard tilt and telescopic steering wheel is a three-spoke, leather-wrapped design embossed with
the STI logo and features control switches for Bluetooth® hands-free phone function. A new AM/FM stereo
with single-disc CD player features Bluetooth audio streaming and hands-free calling, iPod control
capability, a USB port, 3.5 mm aux. input jack and XM/SIRIUS satellite radio (subscription is extra). An
available navigation system integrates a vehicle information centre and Bluetooth hands-free calling.
Specifications mentioned in this news story relate to the US version of the Subaru Impreza WRX STI.
Australian specifications will be announced closer to the local release date.