Subaru released the availability and pricing of the 2011 WRX STI in the UK. Subaru has stopped using the Impreza designation for the latest generation. Both the four-and five-door variants of the new WRX STI are priced at GBP32,995. This is actually the first time that the four- and five-door versions have been sold together in the UK.
Powering the STI is a 2.5-litre Subaru boxer 16-valve turbo engine with Dual Active Valve Control that has an output of 30 hp and 407Nm of torque.
The 2011 model has the same output as the outgoing STI but it features improved torque delivery throughout the rev range that leads to improved response and more linear acceleration. Sprinting from zero to 62 mph (100 km/h) can be done in only 5.2 seconds.
Exterior styling received extensive revisions, with new bumpers, enlarged rear quarter panels and lower ride height. Upgrades were made to the quality of the cabin materials.
All-new RECARO bucket seats were introduced in this model too. Subaru has modified its three-mode SI-Drive (Subaru Intelligent Drive) system that can be used to make adjustments to the engine’s characteristics to best suit an assortment of driving conditions.
Subaru introduced some major changes to the 2011 version of the impressive Impreza WRX STI. The rear subframe now has sturdier bushings. In addition, the chassis has a lower ride height than the 2010 version.
The front subframe is also equipped with updated pillow-ball bushings. These improvements continue to improve camber and toe stiffness when driving the new Impreza WRX STI. Other improvements include near components in the front and rear suspension systems.
The front stabilizer bars are now 21 millimeters thick. The rear bars, on the other hand, have a thickness of 19 millimeters. These are both 1-millimeter improvements against the previous model. In addition, both suspension systems have increased spring rates as well.
Moreover, the front suspension’s rates are 15.6% higher, while the adjustments to the rear suspension resulted to 53% higher spring rates. Even the wheels have seen changes as well. The new Impreza WRX STI now features lightweight 18-inch aluminum wheels.
These wheels’ weights are now 17.6 lbs lighter than the wheels prescribed for the previous version. Consumers also have the option of buying the optional BBS wheels. Made of forged aluminum alloy, these wheels serve to make the vehicle even lighter than it already is.
Both wheel types are painted with high-luster paint. The Subaru Impreza WRX STI 2011 model is the only one in its line to be equipped with the Brembo Performance Brake System. The system uses disc brakes equipped with the Electronic Brake Front Distribution technology by Subaru.
The brakes themselves are ventilated 4-wheel Super Sport anti-lock disc brakes. They have the unique ability of individually responding to braking forces in each of the rear wheels. This gives the Impreza WRX STI unparalleled braking capabilities that help improve performance in hard cornering situations.