The Subaru has released the all new Spec C Subaru Impreza WRX STI which only limited to 900 units. The model features an array of improvements including engine and chassis performance upgrades as well as a lighter body.Based on the standard Impreza WRX STI, the Spec C is powered by a tweaked version of Subaru's 2.0-liter boxer engine with a remapped ECU and new ball bearings for the turbine axle bearing. The turbocharged four-cylinder unit produces an output of 308 PS at 6,400 rpm and 422 Nm of torque at 4,400 rpm with Subaru promising quicker response and improved accelerating performance over the base model.
To improve the car's handling, Subaru's engineers retuned the front and rear suspensions while they also made changes to the steering system. In addition, the rear LSD (Limited Slip Differential) system has been changed from a Torsen type to a mechanical type. The Spec C rides on newly designed 18-inch wheels shod in 245/40 R18 Bridgestone "POTENZA RE070" tires.
Finally, the adoption of an aluminum engine hood, laminar window glasses and a downsized battery plus the replacement of the spare tire with a repair kit resulted in a lighter body.
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