Subaru is officially introducing the Subaru Impreza WRX STI Spec C for the current model. The car hits the market on the July 23, 2009 and makes several improvements on top of the standard STI. The production of the Spec C limited to 900 units only.
The Spec C has lightened the body and weight by fitting with lighter body panel, smaller battery, laminar glass on front and side windows. Besides, the 18″ lightweight alloy wheels (or optional 17″) with seven double spokes are wrapped with Bridgestone Potenza RE070 tyres like the FD2 Civic Type R to improve cornering and grips. Instead of a spare tyre in the trunk, a flat tyre repair kit is placed as part of weight reduction. A recalibrated power steering system to have a nimble handling with a firm steering feel too.
The guys on this project had reprogrammed the ECU and fitted with a redesigned turbocharger that uses new ball and axle bearings to boost the torque output to 422Nm while maintaining 304hp. Technically, the Rear LSD system are changed to a mechanical type from a Torsen type to obtain the steady and powerful traction to improve cornering. The retuned suspension changes in damping force of suspensions, coil spring rate, rear stabilizer and rear sub-frame bushes optimize rigidity for body roll and retain excellent road-holding capability. Besides those, a structural change of fuel pump as well which helps to provides stable fuel delivery even on high-load driving.
All WRX STI Spec models comes standard with gold Brembo brake calipers. The car come standard with front bucket seats that made by fabric with red stitch. However, a pair of Recaro brand bucket seats that made by combination of Alcantara and leather with red stitch are optional.
For the exterior, two exclusive exterior colors are available: Sunrise Yellow and Pure White. Of course, the standard Mica Blue is still available with Spec C. The pricing has not been officially released till date.
-Engine type: Horizontally-Opposed 4-cylinder DOHC 16-valve turbocharged engine
-Displacement: 1,994 cc
-Maximum output: 227kW (308 PS)/6,400 rpm
-Maximum torque: 422 Nm (43.0 kgf·m)/4,400 rpm
-Turbo type: Ball-bearing type twin scroll turbocharger