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The 2015 Subaru WRX STI was a major redesign that focused on chassis rigidity and handling precision, marking the transition to the VA chassis. Performance & Powertrain; < Engine: 2.5-liter Turbocharged/Intercooled 4-cylinder BOXER (EJ257) with Dual Active Valve Control System (Dual AVCS) Power Output of 305 hp < Transmission: Exclusively a 6-speed manual with a reinforced clutch; Launch Edition includes an STI short-throw shifter. < Acceleration: 0-60 mph in approximately 4.7 to 4.9 seconds. < All-Wheel Drive: Symmetrical AWD with Multi-Mode Driver Controlled Center Differential (DCCD), featuring a mechanical and electronic limited-slip center diff with a nominal 41:59 torque split. < Braking: Brembo Performance Brake System with 4-piston front/2-piston rear calipers and Super Sport ABS. < Steering: Quick-ratio hydraulic power steering at 13.0:1 (2.5 turns lock-to-lock) for enhanced feedback. < Stability: New Active Torque Vectoring (ATV) that applies braking to the inside front wheel during cornering.
The 2015 Subaru WRX STI was a major redesign that focused on chassis rigidity and handling precision, marking the transition to the VA chassis. Performance & Powertrain; < Engine: 2.5-liter Turbocharged/Intercooled 4-cylinder BOXER (EJ257) with Dual Active Valve Control System (Dual AVCS) Power Output of 305 hp < Transmission: Exclusively a 6-speed manual with a reinforced clutch; Launch Edition includes an STI short-throw shifter. < Acceleration: 0-60 mph in approximately 4.7 to 4.9 seconds. < All-Wheel Drive: Symmetrical AWD with Multi-Mode Driver Controlled Center Differential (DCCD), featuring a mechanical and electronic limited-slip center diff with a nominal 41:59 torque split. < Braking: Brembo Performance Brake System with 4-piston front/2-piston rear calipers and Super Sport ABS. < Steering: Quick-ratio hydraulic power steering at 13.0:1 (2.5 turns lock-to-lock) for enhanced feedback. < Stability: New Active Torque Vectoring (ATV) that applies braking to the inside front wheel during cornering.

