Subaru UK offers the WRX STI in the UK for a short time in a performance-enhanced version . Instead of producing 300 horsepower 2.5-liter four-cylinder engine of the Japanese 320 hp. The turbocharged boxer engine is to generate this especially at medium speeds, more torque: up to 450 instead of 407 Newton-meters ensure passage. For the sprint from zero to 62 miles per hour (100 km / h) to give the British in 4.9 seconds. Thus, the power-STI is 0.3 seconds faster than the regular model.
In addition, the British buy more power to the special WRX STI also have a Navi with touchscreen, Bluetooth and iPod connectivity. The removable screen can be connected to a laptop via USB. To 30 June 2011, the special version of the Sport Sedan as a four-or five-door model available. The starting price does not change: it remains at 32 995 British pounds, or about 38,000 euros.