The SPT 2010 Subaru Impreza WRX STI leading at this year's SEMA show remains the stock powertrain roughly intact. The SPT 2010 Subaru Impreza WRX STI is motorized by the 2.5 liter DOHC, 16 valve and turbocharged and intercooled 4-cylinder Subaru Boxer engine, prepared with the Dual Active Valve Control System. This signifies the SPT 2010 Subaru Impreza WRX STI expands 290 lb.-ft. of torque at 4,000 RPM while the power output goes up to 315 hp at 6,000 RPM thanks to a new fatigue system.

The suspension system of the SPT 2010 Subaru Impreza WRX STI aspects new springs and a SPT strut tower brace and lower chassis brace. The car sits on Prodrive GT2 wheels.